diff --git a/cli/board/attach.go b/cli/board/attach.go
index 0b8f8bcd016..80b1e68bd9f 100644
--- a/cli/board/attach.go
+++ b/cli/board/attach.go
@@ -22,10 +22,10 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/board"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/spf13/cobra"
 )
@@ -63,7 +63,7 @@ func runAttachCommand(cmd *cobra.Command, args []string) {
 		SearchTimeout: attachFlags.searchTimeout,
 	}, output.TaskProgress())
 	if err != nil {
-		formatter.PrintError(err, "attach board error")
+		feedback.Errorf("Attach board error: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 }
diff --git a/cli/board/details.go b/cli/board/details.go
index e39f5e56842..40ff23aeeb8 100644
--- a/cli/board/details.go
+++ b/cli/board/details.go
@@ -19,15 +19,15 @@ package board
 
 import (
 	"context"
-	"fmt"
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/instance"
-	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/board"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
+	"github.com/arduino/arduino-cli/table"
+	"github.com/fatih/color"
 	"github.com/spf13/cobra"
 )
 
@@ -47,42 +47,68 @@ func runDetailsCommand(cmd *cobra.Command, args []string) {
 	})
 
 	if err != nil {
-		formatter.PrintError(err, "Error getting board details")
+		feedback.Errorf("Error getting board details: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
-	if output.JSONOrElse(res) {
-		outputDetailsResp(res)
-	}
+
+	feedback.PrintResult(detailsResult{details: res})
 }
 
-func outputDetailsResp(details *rpc.BoardDetailsResp) {
-	table := output.NewTable()
-	table.SetColumnWidthMode(1, output.Average)
-	table.AddRow("Board name:", details.Name)
+// ouput from this command requires special formatting, let's create a dedicated
+// feedback.Result implementation
+type detailsResult struct {
+	details *rpc.BoardDetailsResp
+}
+
+func (dr detailsResult) Data() interface{} {
+	return dr.details
+}
+
+func (dr detailsResult) String() string {
+	details := dr.details
+	// Table is 4 columns wide:
+	// |               |                             | |                       |
+	// Board name:     Arduino Nano
+	//
+	// Required tools: arduino:avr-gcc                 5.4.0-atmel3.6.1-arduino2
+	//                 arduino:avrdude                 6.3.0-arduino14
+	//                 arduino:arduinoOTA              1.2.1
+	//
+	// Option:         Processor                       cpu
+	//                 ATmega328P                    ✔ cpu=atmega328
+	//                 ATmega328P (Old Bootloader)     cpu=atmega328old
+	//                 ATmega168                       cpu=atmega168
+	t := table.New()
+	t.SetColumnWidthMode(1, table.Average)
+	t.AddRow("Board name:", details.Name)
+
 	for i, tool := range details.RequiredTools {
-		head := ""
 		if i == 0 {
-			table.AddRow()
-			head = "Required tools:"
+			t.AddRow() // get some space from above
+			t.AddRow("Required tools:", tool.Packager+":"+tool.Name, "", tool.Version)
+			continue
 		}
-		table.AddRow(head, tool.Packager+":"+tool.Name, "", tool.Version)
+		t.AddRow("", tool.Packager+":"+tool.Name, "", tool.Version)
 	}
+
 	for _, option := range details.ConfigOptions {
-		table.AddRow()
-		table.AddRow("Option:",
-			option.OptionLabel,
-			"", option.Option)
+		t.AddRow() // get some space from above
+		t.AddRow("Option:", option.OptionLabel, "", option.Option)
 		for _, value := range option.Values {
+			green := color.New(color.FgGreen)
 			if value.Selected {
-				table.AddRow("",
-					output.Green(value.ValueLabel),
-					output.Green("✔"), output.Green(option.Option+"="+value.Value))
+				t.AddRow("",
+					table.NewCell(value.ValueLabel, green),
+					table.NewCell("✔", green),
+					table.NewCell(option.Option+"="+value.Value, green))
 			} else {
-				table.AddRow("",
+				t.AddRow("",
 					value.ValueLabel,
-					"", option.Option+"="+value.Value)
+					"",
+					option.Option+"="+value.Value)
 			}
 		}
 	}
-	fmt.Print(table.Render())
+
+	return t.Render()
 }
diff --git a/cli/board/list.go b/cli/board/list.go
index 63018402a28..5a70e69687e 100644
--- a/cli/board/list.go
+++ b/cli/board/list.go
@@ -18,17 +18,17 @@
 package board
 
 import (
-	"fmt"
 	"os"
 	"sort"
 	"time"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
+	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
-	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/board"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
+	"github.com/arduino/arduino-cli/table"
 	"github.com/spf13/cobra"
 )
 
@@ -54,7 +54,7 @@ var listFlags struct {
 // runListCommand detects and lists the connected arduino boards
 func runListCommand(cmd *cobra.Command, args []string) {
 	if timeout, err := time.ParseDuration(listFlags.timeout); err != nil {
-		formatter.PrintError(err, "Invalid timeout.")
+		feedback.Errorf("Invalid timeout: %v", err)
 		os.Exit(errorcodes.ErrBadArgument)
 	} else {
 		time.Sleep(timeout)
@@ -62,18 +62,20 @@ func runListCommand(cmd *cobra.Command, args []string) {
 
 	ports, err := board.List(instance.CreateInstance().GetId())
 	if err != nil {
-		formatter.PrintError(err, "Error detecting boards")
+		feedback.Errorf("Error detecting boards: %v", err)
 		os.Exit(errorcodes.ErrNetwork)
 	}
 
-	if output.JSONOrElse(ports) {
+	if globals.OutputFormat == "json" {
+		feedback.PrintJSON(ports)
+	} else {
 		outputListResp(ports)
 	}
 }
 
 func outputListResp(ports []*rpc.DetectedPort) {
 	if len(ports) == 0 {
-		formatter.Print("No boards found.")
+		feedback.Print("No boards found.")
 		return
 	}
 	sort.Slice(ports, func(i, j int) bool {
@@ -81,8 +83,9 @@ func outputListResp(ports []*rpc.DetectedPort) {
 		return x.GetProtocol() < y.GetProtocol() ||
 			(x.GetProtocol() == y.GetProtocol() && x.GetAddress() < y.GetAddress())
 	})
-	table := output.NewTable()
-	table.SetHeader("Port", "Type", "Board Name", "FQBN")
+
+	t := table.New()
+	t.SetHeader("Port", "Type", "Board Name", "FQBN")
 	for _, port := range ports {
 		address := port.GetProtocol() + "://" + port.GetAddress()
 		if port.GetProtocol() == "serial" {
@@ -97,7 +100,7 @@ func outputListResp(ports []*rpc.DetectedPort) {
 			for _, b := range boards {
 				board := b.GetName()
 				fqbn := b.GetFQBN()
-				table.AddRow(address, protocol, board, fqbn)
+				t.AddRow(address, protocol, board, fqbn)
 				// show address and protocol only on the first row
 				address = ""
 				protocol = ""
@@ -105,8 +108,8 @@ func outputListResp(ports []*rpc.DetectedPort) {
 		} else {
 			board := "Unknown"
 			fqbn := ""
-			table.AddRow(address, protocol, board, fqbn)
+			t.AddRow(address, protocol, board, fqbn)
 		}
 	}
-	fmt.Print(table.Render())
+	feedback.Print(t.Render())
 }
diff --git a/cli/board/listall.go b/cli/board/listall.go
index 2c2d2a85122..0034c6c6827 100644
--- a/cli/board/listall.go
+++ b/cli/board/listall.go
@@ -19,16 +19,16 @@ package board
 
 import (
 	"context"
-	"fmt"
 	"os"
 	"sort"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
+	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
-	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/board"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
+	"github.com/arduino/arduino-cli/table"
 	"github.com/spf13/cobra"
 )
 
@@ -54,11 +54,13 @@ func runListAllCommand(cmd *cobra.Command, args []string) {
 		SearchArgs: args,
 	})
 	if err != nil {
-		formatter.PrintError(err, "Error listing boards")
+		feedback.Errorf("Error listing boards: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	if output.JSONOrElse(list) {
+	if globals.OutputFormat == "json" {
+		feedback.PrintJSON(list)
+	} else {
 		outputBoardListAll(list)
 	}
 }
@@ -68,10 +70,10 @@ func outputBoardListAll(list *rpc.BoardListAllResp) {
 		return list.Boards[i].GetName() < list.Boards[j].GetName()
 	})
 
-	table := output.NewTable()
-	table.SetHeader("Board Name", "FQBN")
+	t := table.New()
+	t.SetHeader("Board Name", "FQBN")
 	for _, item := range list.GetBoards() {
-		table.AddRow(item.GetName(), item.GetFQBN())
+		t.AddRow(item.GetName(), item.GetFQBN())
 	}
-	fmt.Print(table.Render())
+	feedback.Print(t.Render())
 }
diff --git a/cli/cli.go b/cli/cli.go
index ee32b40a154..009fe891103 100644
--- a/cli/cli.go
+++ b/cli/cli.go
@@ -18,6 +18,7 @@
 package cli
 
 import (
+	"fmt"
 	"io/ioutil"
 	"os"
 
@@ -27,17 +28,17 @@ import (
 	"github.com/arduino/arduino-cli/cli/core"
 	"github.com/arduino/arduino-cli/cli/daemon"
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/generatedocs"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/lib"
 	"github.com/arduino/arduino-cli/cli/sketch"
 	"github.com/arduino/arduino-cli/cli/upload"
 	"github.com/arduino/arduino-cli/cli/version"
-	"github.com/arduino/arduino-cli/common/formatter"
 	"github.com/mattn/go-colorable"
+	"github.com/rifflock/lfshook"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
-	"golang.org/x/crypto/ssh/terminal"
 )
 
 var (
@@ -50,11 +51,12 @@ var (
 		PersistentPreRun: preRun,
 	}
 
-	// ErrLogrus represents the logrus instance, which has the role to
-	// log all non info messages.
-	ErrLogrus = logrus.New()
+	verbose bool
+	logFile string
+)
 
-	outputFormat string
+const (
+	defaultLogLevel = "info"
 )
 
 // Init the cobra root command
@@ -75,49 +77,90 @@ func createCliCommandTree(cmd *cobra.Command) {
 	cmd.AddCommand(upload.NewCommand())
 	cmd.AddCommand(version.NewCommand())
 
-	cmd.PersistentFlags().BoolVar(&globals.Debug, "debug", false, "Enables debug output (super verbose, used to debug the CLI).")
-	cmd.PersistentFlags().StringVar(&outputFormat, "format", "text", "The output format, can be [text|json].")
+	cmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "Print the logs on the standard output.")
+	cmd.PersistentFlags().StringVar(&globals.LogLevel, "log-level", defaultLogLevel, "Messages with this level and above will be logged (default: warn).")
+	cmd.PersistentFlags().StringVar(&logFile, "log-file", "", "Path to the file where logs will be written.")
+	cmd.PersistentFlags().StringVar(&globals.OutputFormat, "format", "text", "The output format, can be [text|json].")
 	cmd.PersistentFlags().StringVar(&globals.YAMLConfigFile, "config-file", "", "The custom config file (if not specified the default will be used).")
 	cmd.PersistentFlags().StringSliceVar(&globals.AdditionalUrls, "additional-urls", []string{}, "Additional URLs for the board manager.")
 }
 
+// convert the string passed to the `--log-level` option to the corresponding
+// logrus formal level.
+func toLogLevel(s string) (t logrus.Level, found bool) {
+	t, found = map[string]logrus.Level{
+		"trace": logrus.TraceLevel,
+		"debug": logrus.DebugLevel,
+		"info":  logrus.InfoLevel,
+		"warn":  logrus.WarnLevel,
+		"error": logrus.ErrorLevel,
+		"fatal": logrus.FatalLevel,
+		"panic": logrus.PanicLevel,
+	}[s]
+
+	return
+}
+
+func parseFormatString(arg string) (feedback.OutputFormat, bool) {
+	f, found := map[string]feedback.OutputFormat{
+		"json": feedback.JSON,
+		"text": feedback.Text,
+	}[arg]
+
+	return f, found
+}
+
 func preRun(cmd *cobra.Command, args []string) {
-	// Reset logrus if debug flag changed.
-	if !globals.Debug {
-		// Discard logrus output if no debug.
+	// should we log to file?
+	if logFile != "" {
+		file, err := os.OpenFile(logFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
+		if err != nil {
+			fmt.Printf("Unable to open file for logging: %s", logFile)
+			os.Exit(errorcodes.ErrBadCall)
+		}
+
+		// we use a hook so we don't get color codes in the log file
+		logrus.AddHook(lfshook.NewHook(file, &logrus.TextFormatter{}))
+	}
+
+	// should we log to stdout?
+	if verbose {
+		logrus.SetOutput(colorable.NewColorableStdout())
+		logrus.SetFormatter(&logrus.TextFormatter{
+			ForceColors: true,
+		})
+	} else {
+		// Discard logrus output if no writer was set
 		logrus.SetOutput(ioutil.Discard)
+	}
+
+	// configure logging filter
+	if lvl, found := toLogLevel(globals.LogLevel); !found {
+		fmt.Printf("Invalid option for --log-level: %s", globals.LogLevel)
+		os.Exit(errorcodes.ErrBadArgument)
 	} else {
-		// Else print on stderr.
+		logrus.SetLevel(lvl)
+	}
 
-		// Workaround to get colored output on windows
-		if terminal.IsTerminal(int(os.Stdout.Fd())) {
-			logrus.SetFormatter(&logrus.TextFormatter{ForceColors: true})
-		}
-		logrus.SetOutput(colorable.NewColorableStdout())
-		ErrLogrus.Out = colorable.NewColorableStderr()
-		formatter.SetLogger(ErrLogrus)
+	// check the right format was passed
+	if f, found := parseFormatString(globals.OutputFormat); !found {
+		feedback.Error("Invalid output format: " + globals.OutputFormat)
+		os.Exit(errorcodes.ErrBadCall)
+	} else {
+		// use the format to configure the Feedback
+		feedback.SetFormat(f)
 	}
+
 	globals.InitConfigs()
 
 	logrus.Info(globals.VersionInfo.Application + "-" + globals.VersionInfo.VersionString)
 	logrus.Info("Starting root command preparation (`arduino`)")
-	switch outputFormat {
-	case "text":
-		formatter.SetFormatter("text")
-		globals.OutputJSON = false
-	case "json":
-		formatter.SetFormatter("json")
-		globals.OutputJSON = true
-	default:
-		formatter.PrintErrorMessage("Invalid output format: " + outputFormat)
-		os.Exit(errorcodes.ErrBadCall)
-	}
 
 	logrus.Info("Formatter set")
-	if !formatter.IsCurrentFormat("text") {
+	if globals.OutputFormat != "text" {
 		cmd.SetHelpFunc(func(cmd *cobra.Command, args []string) {
 			logrus.Warn("Calling help on JSON format")
-			formatter.PrintErrorMessage("Invalid Call : should show Help, but it is available only in TEXT mode.")
+			feedback.Error("Invalid Call : should show Help, but it is available only in TEXT mode.")
 			os.Exit(errorcodes.ErrBadCall)
 		})
 	}
diff --git a/cli/cli_test.go b/cli/cli_test.go
index 79b79f56a01..e12c4bb57f4 100644
--- a/cli/cli_test.go
+++ b/cli/cli_test.go
@@ -27,6 +27,8 @@ import (
 	"runtime"
 	"testing"
 
+	"github.com/arduino/arduino-cli/cli/feedback"
+
 	"bou.ke/monkey"
 	paths "github.com/arduino/go-paths-helper"
 	"github.com/stretchr/testify/require"
@@ -145,6 +147,8 @@ func executeWithArgs(args ...string) (int, []byte) {
 
 		redirect := &stdOutRedirect{}
 		redirect.Open()
+		// re-init feedback so it'll write to our grabber
+		feedback.SetDefaultFeedback(feedback.New(os.Stdout, os.Stdout, feedback.Text))
 		defer func() {
 			output = redirect.GetOutput()
 			redirect.Close()
@@ -293,8 +297,9 @@ func TestUploadIntegration(t *testing.T) {
 }
 
 func TestSketchCommandsIntegration(t *testing.T) {
-	exitCode, _ := executeWithArgs("sketch", "new", "Test")
+	exitCode, d := executeWithArgs("sketch", "new", "Test")
 	require.Zero(t, exitCode)
+	require.Contains(t, string(d), "Sketch created")
 }
 
 func TestCompileCommandsIntegration(t *testing.T) {
@@ -316,7 +321,6 @@ func TestCompileCommandsIntegration(t *testing.T) {
 	// Create a test sketch
 	exitCode, d := executeWithArgs("sketch", "new", "Test1")
 	require.Zero(t, exitCode)
-	require.Contains(t, string(d), "Sketch created")
 
 	// Build sketch without FQBN
 	test1 := filepath.Join(currSketchbookDir, "Test1")
diff --git a/cli/compile/compile.go b/cli/compile/compile.go
index 91b5d66dedb..1421a331056 100644
--- a/cli/compile/compile.go
+++ b/cli/compile/compile.go
@@ -21,13 +21,13 @@ import (
 	"context"
 	"os"
 
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/commands/compile"
 	"github.com/arduino/arduino-cli/commands/upload"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/arduino/go-paths-helper"
 	"github.com/sirupsen/logrus"
@@ -107,10 +107,10 @@ func run(cmd *cobra.Command, args []string) {
 		Quiet:           quiet,
 		VidPid:          vidPid,
 		ExportFile:      exportFile,
-	}, os.Stdout, os.Stderr, globals.Config, globals.Debug)
+	}, os.Stdout, os.Stderr, globals.Config, globals.LogLevel == "debug")
 
 	if err != nil {
-		formatter.PrintError(err, "Error during build")
+		feedback.Errorf("Error during build: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
@@ -126,7 +126,7 @@ func run(cmd *cobra.Command, args []string) {
 		}, os.Stdout, os.Stderr)
 
 		if err != nil {
-			formatter.PrintError(err, "Error during Upload")
+			feedback.Errorf("Error during Upload: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 	}
@@ -140,7 +140,7 @@ func initSketchPath(sketchPath *paths.Path) *paths.Path {
 
 	wd, err := paths.Getwd()
 	if err != nil {
-		formatter.PrintError(err, "Couldn't get current working directory")
+		feedback.Errorf("Couldn't get current working directory: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 	logrus.Infof("Reading sketch from dir: %s", wd)
diff --git a/cli/config/dump.go b/cli/config/dump.go
index 2339662ce23..a1f56e536e0 100644
--- a/cli/config/dump.go
+++ b/cli/config/dump.go
@@ -18,16 +18,37 @@
 package config
 
 import (
-	"fmt"
+	"net/url"
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
-	"github.com/arduino/arduino-cli/common/formatter"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
+// FIXME: The way the Config objects is marshalled into JSON shouldn't be here,
+// this is a temporary fix for the command `arduino-cli config dump --format json`
+type jsonConfig struct {
+	ProxyType           string                   `json:"proxy_type"`
+	ProxyManualConfig   *jsonProxyConfig         `json:"manual_configs,omitempty"`
+	SketchbookPath      string                   `json:"sketchbook_path,omitempty"`
+	ArduinoDataDir      string                   `json:"arduino_data,omitempty"`
+	ArduinoDownloadsDir string                   `json:"arduino_downloads_dir,omitempty"`
+	BoardsManager       *jsonBoardsManagerConfig `json:"board_manager"`
+}
+
+type jsonBoardsManagerConfig struct {
+	AdditionalURLS []*url.URL `json:"additional_urls,omitempty"`
+}
+
+type jsonProxyConfig struct {
+	Hostname string `json:"hostname"`
+	Username string `json:"username,omitempty"`
+	Password string `json:"password,omitempty"` // can be encrypted, see issue #71
+}
+
 var dumpCmd = &cobra.Command{
 	Use:     "dump",
 	Short:   "Prints the current configuration",
@@ -42,9 +63,43 @@ func runDumpCommand(cmd *cobra.Command, args []string) {
 
 	data, err := globals.Config.SerializeToYAML()
 	if err != nil {
-		formatter.PrintError(err, "Error creating configuration")
+		feedback.Errorf("Error creating configuration: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	fmt.Println(string(data))
+	c := globals.Config
+
+	if globals.OutputFormat == "json" {
+		sketchbookDir := ""
+		if c.SketchbookDir != nil {
+			sketchbookDir = c.SketchbookDir.String()
+		}
+
+		arduinoDataDir := ""
+		if c.DataDir != nil {
+			arduinoDataDir = c.DataDir.String()
+		}
+
+		arduinoDownloadsDir := ""
+		if c.ArduinoDownloadsDir != nil {
+			arduinoDownloadsDir = c.ArduinoDownloadsDir.String()
+		}
+
+		feedback.PrintJSON(jsonConfig{
+			ProxyType: c.ProxyType,
+			ProxyManualConfig: &jsonProxyConfig{
+				Hostname: c.ProxyHostname,
+				Username: c.ProxyUsername,
+				Password: c.ProxyPassword,
+			},
+			SketchbookPath:      sketchbookDir,
+			ArduinoDataDir:      arduinoDataDir,
+			ArduinoDownloadsDir: arduinoDownloadsDir,
+			BoardsManager: &jsonBoardsManagerConfig{
+				AdditionalURLS: c.BoardManagerAdditionalUrls,
+			},
+		})
+	} else {
+		feedback.Print(string(data))
+	}
 }
diff --git a/cli/config/init.go b/cli/config/init.go
index 2cbc05a6d89..66998e02437 100644
--- a/cli/config/init.go
+++ b/cli/config/init.go
@@ -21,8 +21,8 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
-	"github.com/arduino/arduino-cli/common/formatter"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
@@ -56,8 +56,8 @@ func runInitCommand(cmd *cobra.Command, args []string) {
 	logrus.Info("Executing `arduino config init`")
 
 	if !initFlags._default {
-		if !formatter.IsCurrentFormat("text") {
-			formatter.PrintErrorMessage("The interactive mode is supported only in text mode.")
+		if globals.OutputFormat != "text" {
+			feedback.Error("The interactive mode is supported only in text mode.")
 			os.Exit(errorcodes.ErrBadCall)
 		}
 	}
@@ -68,14 +68,14 @@ func runInitCommand(cmd *cobra.Command, args []string) {
 	}
 
 	if err := globals.Config.ConfigFile.Parent().MkdirAll(); err != nil {
-		formatter.PrintError(err, "Cannot create config file.")
+		feedback.Errorf("Cannot create config file: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
 	if err := globals.Config.SaveToYAML(filepath); err != nil {
-		formatter.PrintError(err, "Cannot create config file.")
+		feedback.Errorf("Cannot create config file: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
-	formatter.PrintResult("Config file PATH: " + filepath)
+	feedback.Print("Config file PATH: " + filepath)
 	logrus.Info("Done")
 }
diff --git a/cli/core/download.go b/cli/core/download.go
index 46ddef40fbf..0506ab96148 100644
--- a/cli/core/download.go
+++ b/cli/core/download.go
@@ -22,11 +22,11 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/core"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -52,7 +52,7 @@ func runDownloadCommand(cmd *cobra.Command, args []string) {
 
 	platformsRefs, err := globals.ParseReferenceArgs(args, true)
 	if err != nil {
-		formatter.PrintError(err, "Invalid argument passed")
+		feedback.Errorf("Invalid argument passed: %v", err)
 		os.Exit(errorcodes.ErrBadArgument)
 	}
 
@@ -66,7 +66,7 @@ func runDownloadCommand(cmd *cobra.Command, args []string) {
 		_, err := core.PlatformDownload(context.Background(), platformDownloadreq, output.ProgressBar(),
 			globals.HTTPClientHeader)
 		if err != nil {
-			formatter.PrintError(err, "Error downloading "+args[i])
+			feedback.Errorf("Error downloading %s: %v", args[i], err)
 			os.Exit(errorcodes.ErrNetwork)
 		}
 	}
diff --git a/cli/core/install.go b/cli/core/install.go
index 25d18eea835..29e3022eaec 100644
--- a/cli/core/install.go
+++ b/cli/core/install.go
@@ -22,11 +22,11 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/core"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -53,7 +53,7 @@ func runInstallCommand(cmd *cobra.Command, args []string) {
 
 	platformsRefs, err := globals.ParseReferenceArgs(args, true)
 	if err != nil {
-		formatter.PrintError(err, "Invalid argument passed")
+		feedback.Errorf("Invalid argument passed: %v", err)
 		os.Exit(errorcodes.ErrBadArgument)
 	}
 
@@ -67,7 +67,7 @@ func runInstallCommand(cmd *cobra.Command, args []string) {
 		_, err := core.PlatformInstall(context.Background(), plattformInstallReq, output.ProgressBar(),
 			output.TaskProgress(), globals.HTTPClientHeader)
 		if err != nil {
-			formatter.PrintError(err, "Error during install")
+			feedback.Errorf("Error during install: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 	}
diff --git a/cli/core/list.go b/cli/core/list.go
index 3620394f069..d45f1835f38 100644
--- a/cli/core/list.go
+++ b/cli/core/list.go
@@ -18,16 +18,16 @@
 package core
 
 import (
-	"fmt"
 	"os"
 	"sort"
 
 	"github.com/arduino/arduino-cli/arduino/cores"
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
+	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
-	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/core"
-	"github.com/arduino/arduino-cli/common/formatter"
+	"github.com/arduino/arduino-cli/table"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
@@ -55,11 +55,13 @@ func runListCommand(cmd *cobra.Command, args []string) {
 
 	platforms, err := core.GetPlatforms(instance.Id, listFlags.updatableOnly)
 	if err != nil {
-		formatter.PrintError(err, "Error listing platforms")
+		feedback.Errorf("Error listing platforms: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	if output.JSONOrElse(platforms) {
+	if globals.OutputFormat == "json" {
+		feedback.PrintJSON(platforms)
+	} else {
 		outputInstalledCores(platforms)
 	}
 }
@@ -69,13 +71,14 @@ func outputInstalledCores(platforms []*cores.PlatformRelease) {
 		return
 	}
 
-	table := output.NewTable()
-	table.AddRow("ID", "Installed", "Latest", "Name")
+	t := table.New()
+	t.SetHeader("ID", "Installed", "Latest", "Name")
 	sort.Slice(platforms, func(i, j int) bool {
 		return platforms[i].Platform.String() < platforms[j].Platform.String()
 	})
 	for _, p := range platforms {
-		table.AddRow(p.Platform.String(), p.Version.String(), p.Platform.GetLatestRelease().Version.String(), p.Platform.Name)
+		t.AddRow(p.Platform.String(), p.Version.String(), p.Platform.GetLatestRelease().Version.String(), p.Platform.Name)
 	}
-	fmt.Print(table.Render())
+
+	feedback.Print(t.Render())
 }
diff --git a/cli/core/search.go b/cli/core/search.go
index 5c08f3d300c..4143777886b 100644
--- a/cli/core/search.go
+++ b/cli/core/search.go
@@ -19,17 +19,17 @@ package core
 
 import (
 	"context"
-	"fmt"
 	"os"
 	"sort"
 	"strings"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
+	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
-	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/core"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
+	"github.com/arduino/arduino-cli/table"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
@@ -51,35 +51,40 @@ func runSearchCommand(cmd *cobra.Command, args []string) {
 	logrus.Info("Executing `arduino core search`")
 
 	arguments := strings.ToLower(strings.Join(args, " "))
-	formatter.Print("Searching for platforms matching '" + arguments + "'")
+
+	if globals.OutputFormat != "json" {
+		feedback.Printf("Searching for platforms matching '%s'", arguments)
+	}
 
 	resp, err := core.PlatformSearch(context.Background(), &rpc.PlatformSearchReq{
 		Instance:   instance,
 		SearchArgs: arguments,
 	})
 	if err != nil {
-		formatter.PrintError(err, "Error saerching for platforms")
+		feedback.Errorf("Error saerching for platforms: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
 	coreslist := resp.GetSearchOutput()
-	if output.JSONOrElse(coreslist) {
-		if len(coreslist) > 0 {
-			outputSearchCores(coreslist)
-		} else {
-			formatter.Print("No platforms matching your search.")
-		}
+	if globals.OutputFormat == "json" {
+		feedback.PrintJSON(coreslist)
+	} else {
+		outputSearchCores(coreslist)
 	}
 }
 
 func outputSearchCores(cores []*rpc.Platform) {
-	table := output.NewTable()
-	table.AddRow("ID", "Version", "Name")
-	sort.Slice(cores, func(i, j int) bool {
-		return cores[i].ID < cores[j].ID
-	})
-	for _, item := range cores {
-		table.AddRow(item.GetID(), item.GetLatest(), item.GetName())
+	if len(cores) > 0 {
+		t := table.New()
+		t.SetHeader("ID", "Version", "Name")
+		sort.Slice(cores, func(i, j int) bool {
+			return cores[i].ID < cores[j].ID
+		})
+		for _, item := range cores {
+			t.AddRow(item.GetID(), item.GetLatest(), item.GetName())
+		}
+		feedback.Print(t.Render())
+	} else {
+		feedback.Print("No platforms matching your search.")
 	}
-	fmt.Print(table.Render())
 }
diff --git a/cli/core/uninstall.go b/cli/core/uninstall.go
index f057de7b7f2..05fcaf60a9e 100644
--- a/cli/core/uninstall.go
+++ b/cli/core/uninstall.go
@@ -22,11 +22,11 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/core"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -49,13 +49,13 @@ func runUninstallCommand(cmd *cobra.Command, args []string) {
 
 	platformsRefs, err := globals.ParseReferenceArgs(args, true)
 	if err != nil {
-		formatter.PrintError(err, "Invalid argument passed")
+		feedback.Errorf("Invalid argument passed: %v", err)
 		os.Exit(errorcodes.ErrBadArgument)
 	}
 
 	for _, platformRef := range platformsRefs {
 		if platformRef.Version != "" {
-			formatter.PrintErrorMessage("Invalid parameter " + platformRef.String() + ": version not allowed")
+			feedback.Error("Invalid parameter " + platformRef.String() + ": version not allowed")
 			os.Exit(errorcodes.ErrBadArgument)
 		}
 	}
@@ -66,7 +66,7 @@ func runUninstallCommand(cmd *cobra.Command, args []string) {
 			Architecture:    platformRef.Architecture,
 		}, output.NewTaskProgressCB())
 		if err != nil {
-			formatter.PrintError(err, "Error during uninstall")
+			feedback.Errorf("Error during uninstall: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 	}
diff --git a/cli/core/update_index.go b/cli/core/update_index.go
index a146927a248..cd0f4c80444 100644
--- a/cli/core/update_index.go
+++ b/cli/core/update_index.go
@@ -22,10 +22,10 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -51,7 +51,7 @@ func runUpdateIndexCommand(cmd *cobra.Command, args []string) {
 		Instance: instance,
 	}, output.ProgressBar())
 	if err != nil {
-		formatter.PrintError(err, "Error updating index")
+		feedback.Errorf("Error updating index: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 }
diff --git a/cli/core/upgrade.go b/cli/core/upgrade.go
index 8727461c55a..838d16d67cd 100644
--- a/cli/core/upgrade.go
+++ b/cli/core/upgrade.go
@@ -19,15 +19,14 @@ package core
 
 import (
 	"context"
-	"fmt"
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/core"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -56,12 +55,12 @@ func runUpgradeCommand(cmd *cobra.Command, args []string) {
 	if len(args) == 0 {
 		targets, err := core.GetPlatforms(instance.Id, true)
 		if err != nil {
-			formatter.PrintError(err, "Error retrieving core list")
+			feedback.Errorf("Error retrieving core list: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 
 		if len(targets) == 0 {
-			formatter.PrintResult("All the cores are already at the latest version")
+			feedback.Print("All the cores are already at the latest version")
 			return
 		}
 
@@ -74,13 +73,13 @@ func runUpgradeCommand(cmd *cobra.Command, args []string) {
 	exitErr := false
 	platformsRefs, err := globals.ParseReferenceArgs(args, true)
 	if err != nil {
-		formatter.PrintError(err, "Invalid argument passed")
+		feedback.Errorf("Invalid argument passed: %v", err)
 		os.Exit(errorcodes.ErrBadArgument)
 	}
 
 	for i, platformRef := range platformsRefs {
 		if platformRef.Version != "" {
-			formatter.PrintErrorMessage(("Invalid item " + args[i]))
+			feedback.Error(("Invalid item " + args[i]))
 			exitErr = true
 			continue
 		}
@@ -93,9 +92,9 @@ func runUpgradeCommand(cmd *cobra.Command, args []string) {
 
 		_, err := core.PlatformUpgrade(context.Background(), r, output.ProgressBar(), output.TaskProgress(), globals.HTTPClientHeader)
 		if err == core.ErrAlreadyLatest {
-			formatter.PrintResult(fmt.Sprintf("Platform %s is already at the latest version", platformRef))
+			feedback.Printf("Platform %s is already at the latest version", platformRef)
 		} else if err != nil {
-			formatter.PrintError(err, "Error during upgrade")
+			feedback.Errorf("Error during upgrade: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 	}
diff --git a/cli/feedback/exported.go b/cli/feedback/exported.go
new file mode 100644
index 00000000000..a3cc2a6f23d
--- /dev/null
+++ b/cli/feedback/exported.go
@@ -0,0 +1,80 @@
+// This file is part of arduino-cli.
+//
+// Copyright 2019 ARDUINO SA (http://www.arduino.cc/)
+//
+// This software is released under the GNU General Public License version 3,
+// which covers the main part of arduino-cli.
+// The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to modify or
+// otherwise use the software for commercial activities involving the Arduino
+// software without disclosing the source code of your own applications. To purchase
+// a commercial license, send an email to license@arduino.cc.
+
+package feedback
+
+import (
+	"io"
+)
+
+var (
+	fb = DefaultFeedback()
+)
+
+// SetDefaultFeedback lets callers override the default feedback object. Mostly
+// useful for testing.
+func SetDefaultFeedback(f *Feedback) {
+	fb = f
+}
+
+// SetFormat can be used to change the output format at runtime
+func SetFormat(f OutputFormat) {
+	fb.SetFormat(f)
+}
+
+// OutputWriter returns the underlying io.Writer to be used when the Print*
+// api is not enough
+func OutputWriter() io.Writer {
+	return fb.OutputWriter()
+}
+
+// ErrorWriter is the same as OutputWriter but exposes the underlying error
+// writer
+func ErrorWriter() io.Writer {
+	return fb.ErrorWriter()
+}
+
+// Printf behaves like fmt.Printf but writes on the out writer and adds a newline.
+func Printf(format string, v ...interface{}) {
+	fb.Printf(format, v...)
+}
+
+// Print behaves like fmt.Print but writes on the out writer and adds a newline.
+func Print(v ...interface{}) {
+	fb.Print(v...)
+}
+
+// Errorf behaves like fmt.Printf but writes on the error writer and adds a
+// newline. It also logs the error.
+func Errorf(format string, v ...interface{}) {
+	fb.Errorf(format, v...)
+}
+
+// Error behaves like fmt.Print but writes on the error writer and adds a
+// newline. It also logs the error.
+func Error(v ...interface{}) {
+	fb.Error(v...)
+}
+
+// PrintJSON is a convenient wrapper to provide feedback by printing the
+// desired output in a pretty JSON format. It adds a newline to the output.
+func PrintJSON(v interface{}) {
+	fb.PrintJSON(v)
+}
+
+// PrintResult is a convenient wrapper...
+func PrintResult(res Result) {
+	fb.PrintResult(res)
+}
diff --git a/cli/feedback/feedback.go b/cli/feedback/feedback.go
new file mode 100644
index 00000000000..1f355c9f869
--- /dev/null
+++ b/cli/feedback/feedback.go
@@ -0,0 +1,127 @@
+// This file is part of arduino-cli.
+//
+// Copyright 2019 ARDUINO SA (http://www.arduino.cc/)
+//
+// This software is released under the GNU General Public License version 3,
+// which covers the main part of arduino-cli.
+// The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to modify or
+// otherwise use the software for commercial activities involving the Arduino
+// software without disclosing the source code of your own applications. To purchase
+// a commercial license, send an email to license@arduino.cc.
+
+package feedback
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+
+	"github.com/sirupsen/logrus"
+)
+
+// OutputFormat is used to determine the output format
+type OutputFormat int
+
+const (
+	// Text means plain text format, suitable for ansi terminals
+	Text OutputFormat = iota
+	// JSON means JSON format
+	JSON
+)
+
+// Result is anything more complex than a sentence that needs to be printed
+// for the user.
+type Result interface {
+	fmt.Stringer
+	Data() interface{}
+}
+
+// Feedback wraps an io.Writer and provides an uniform API the CLI can use to
+// provide feedback to the users.
+type Feedback struct {
+	out    io.Writer
+	err    io.Writer
+	format OutputFormat
+}
+
+// New creates a Feedback instance
+func New(out, err io.Writer, format OutputFormat) *Feedback {
+	return &Feedback{
+		out:    out,
+		err:    err,
+		format: format,
+	}
+}
+
+// DefaultFeedback provides a basic feedback object to be used as default.
+func DefaultFeedback() *Feedback {
+	return New(os.Stdout, os.Stderr, Text)
+}
+
+// SetFormat can be used to change the output format at runtime
+func (fb *Feedback) SetFormat(f OutputFormat) {
+	fb.format = f
+}
+
+// OutputWriter returns the underlying io.Writer to be used when the Print*
+// api is not enough.
+func (fb *Feedback) OutputWriter() io.Writer {
+	return fb.out
+}
+
+// ErrorWriter is the same as OutputWriter but exposes the underlying error
+// writer.
+func (fb *Feedback) ErrorWriter() io.Writer {
+	return fb.out
+}
+
+// Printf behaves like fmt.Printf but writes on the out writer and adds a newline.
+func (fb *Feedback) Printf(format string, v ...interface{}) {
+	fb.Print(fmt.Sprintf(format, v...))
+}
+
+// Print behaves like fmt.Print but writes on the out writer and adds a newline.
+func (fb *Feedback) Print(v ...interface{}) {
+	fmt.Fprintln(fb.out, v...)
+}
+
+// Errorf behaves like fmt.Printf but writes on the error writer and adds a
+// newline. It also logs the error.
+func (fb *Feedback) Errorf(format string, v ...interface{}) {
+	fb.Error(fmt.Sprintf(format, v...))
+}
+
+// Error behaves like fmt.Print but writes on the error writer and adds a
+// newline. It also logs the error.
+func (fb *Feedback) Error(v ...interface{}) {
+	fmt.Fprintln(fb.err, v...)
+	logrus.Error(fmt.Sprint(v...))
+}
+
+// PrintJSON is a convenient wrapper to provide feedback by printing the
+// desired output in a pretty JSON format. It adds a newline to the output.
+func (fb *Feedback) PrintJSON(v interface{}) {
+	if d, err := json.MarshalIndent(v, "", "  "); err != nil {
+		fb.Errorf("Error during JSON encoding of the output: %v", err)
+	} else {
+		fb.Print(string(d))
+	}
+}
+
+// PrintResult is a convenient wrapper...
+func (fb *Feedback) PrintResult(res Result) {
+	if fb.format == JSON {
+		if d, err := json.MarshalIndent(res.Data(), "", "  "); err != nil {
+			fb.Errorf("Error during JSON encoding of the output: %v", err)
+		} else {
+			fb.Print(string(d))
+		}
+	} else {
+		fb.Print(fmt.Sprintf("%s", res))
+	}
+}
diff --git a/cli/globals/configs.go b/cli/globals/configs.go
index f8362b5ac20..c17ff616cda 100644
--- a/cli/globals/configs.go
+++ b/cli/globals/configs.go
@@ -20,7 +20,7 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
-	"github.com/arduino/arduino-cli/common/formatter"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/configs"
 	"github.com/arduino/go-paths-helper"
 	"github.com/sirupsen/logrus"
@@ -31,7 +31,7 @@ func InitConfigs() {
 	// Start with default configuration
 	if conf, err := configs.NewConfiguration(); err != nil {
 		logrus.WithError(err).Error("Error creating default configuration")
-		formatter.PrintError(err, "Error creating default configuration")
+		feedback.Errorf("Error creating default configuration: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	} else {
 		Config = conf
@@ -67,7 +67,7 @@ func InitConfigs() {
 	if old := paths.New(".cli-config.yml"); old.Exist() {
 		logrus.Errorf("Old configuration file detected: %s.", old)
 		logrus.Info("The name of this file has been changed to `arduino-yaml`, please rename the file fix it.")
-		formatter.PrintError(
+		feedback.Error(
 			fmt.Errorf("WARNING: Old configuration file detected: %s", old),
 			"The name of this file has been changed to `arduino-yaml`, in a future release we will not support"+
 				"the old name `.cli-config.yml` anymore. Please rename the file to `arduino-yaml` to silence this warning.")
diff --git a/cli/globals/globals.go b/cli/globals/globals.go
index 92e831afba3..12863bc0b83 100644
--- a/cli/globals/globals.go
+++ b/cli/globals/globals.go
@@ -29,8 +29,8 @@ import (
 var (
 	// Debug determines whether to dump debug output to stderr or not
 	Debug bool
-	// OutputJSON is true output in JSON, false output as Text
-	OutputJSON bool
+	// OutputFormat can be "text" or "json"
+	OutputFormat string
 	// HTTPClientHeader is the object that will be propagated to configure the clients inside the downloaders
 	HTTPClientHeader = getHTTPClientHeader()
 	// VersionInfo contains all info injected during build
@@ -41,6 +41,9 @@ var (
 	YAMLConfigFile string
 	// AdditionalUrls contains the list of additional urls the boards manager can use
 	AdditionalUrls []string
+	// LogLevel is temporarily exported because the compile command will
+	// forward this information to the underlying legacy package
+	LogLevel string
 )
 
 func getHTTPClientHeader() http.Header {
diff --git a/cli/instance/instance.go b/cli/instance/instance.go
index d7e73eded0e..d4aec847902 100644
--- a/cli/instance/instance.go
+++ b/cli/instance/instance.go
@@ -2,14 +2,13 @@ package instance
 
 import (
 	"context"
-	"errors"
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/sirupsen/logrus"
 )
@@ -25,9 +24,9 @@ func CreateInstance() *rpc.Instance {
 	resp := initInstance()
 	if resp.GetPlatformsIndexErrors() != nil {
 		for _, err := range resp.GetPlatformsIndexErrors() {
-			formatter.PrintError(errors.New(err), "Error loading index")
+			feedback.Errorf("Error loading index: %v", err)
 		}
-		formatter.PrintErrorMessage("Launch '" + os.Args[0] + " core update-index' to fix or download indexes.")
+		feedback.Errorf("Launch '%s core update-index' to fix or download indexes.", os.Args[0])
 		os.Exit(errorcodes.ErrGeneric)
 	}
 	return resp.GetInstance()
@@ -39,7 +38,7 @@ func initInstance() *rpc.InitResp {
 
 	resp, err := commands.Init(context.Background(), req, output.ProgressBar(), output.TaskProgress(), globals.HTTPClientHeader)
 	if err != nil {
-		formatter.PrintError(err, "Error initializing package manager")
+		feedback.Errorf("Error initializing package manager: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 	if resp.GetLibrariesIndexError() != "" {
@@ -47,11 +46,11 @@ func initInstance() *rpc.InitResp {
 			&rpc.UpdateLibrariesIndexReq{Instance: resp.GetInstance()}, output.ProgressBar())
 		rescResp, err := commands.Rescan(resp.GetInstance().GetId())
 		if rescResp.GetLibrariesIndexError() != "" {
-			formatter.PrintErrorMessage("Error loading library index: " + rescResp.GetLibrariesIndexError())
+			feedback.Errorf("Error loading library index: %v", rescResp.GetLibrariesIndexError())
 			os.Exit(errorcodes.ErrGeneric)
 		}
 		if err != nil {
-			formatter.PrintError(err, "Error loading library index")
+			feedback.Errorf("Error loading library index: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 		resp.LibrariesIndexError = rescResp.LibrariesIndexError
diff --git a/cli/lib/download.go b/cli/lib/download.go
index af0661fbc34..f458b117471 100644
--- a/cli/lib/download.go
+++ b/cli/lib/download.go
@@ -22,11 +22,11 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/lib"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/spf13/cobra"
 )
@@ -49,7 +49,7 @@ func runDownloadCommand(cmd *cobra.Command, args []string) {
 	instance := instance.CreateInstaceIgnorePlatformIndexErrors()
 	refs, err := globals.ParseReferenceArgs(args, false)
 	if err != nil {
-		formatter.PrintError(err, "Invalid argument passed")
+		feedback.Errorf("Invalid argument passed: %v", err)
 		os.Exit(errorcodes.ErrBadArgument)
 	}
 
@@ -62,7 +62,7 @@ func runDownloadCommand(cmd *cobra.Command, args []string) {
 		_, err := lib.LibraryDownload(context.Background(), libraryDownloadReq, output.ProgressBar(),
 			globals.HTTPClientHeader)
 		if err != nil {
-			formatter.PrintError(err, "Error downloading "+library.String())
+			feedback.Errorf("Error downloading %s: %v", library, err)
 			os.Exit(errorcodes.ErrNetwork)
 		}
 	}
diff --git a/cli/lib/install.go b/cli/lib/install.go
index bf3a6f8c671..cfcae9fe76a 100644
--- a/cli/lib/install.go
+++ b/cli/lib/install.go
@@ -22,11 +22,11 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/lib"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/spf13/cobra"
 )
@@ -49,7 +49,7 @@ func runInstallCommand(cmd *cobra.Command, args []string) {
 	instance := instance.CreateInstaceIgnorePlatformIndexErrors()
 	refs, err := globals.ParseReferenceArgs(args, false)
 	if err != nil {
-		formatter.PrintError(err, "Arguments error")
+		feedback.Errorf("Arguments error: %v", err)
 		os.Exit(errorcodes.ErrBadArgument)
 	}
 
@@ -62,7 +62,7 @@ func runInstallCommand(cmd *cobra.Command, args []string) {
 		err := lib.LibraryInstall(context.Background(), libraryInstallReq, output.ProgressBar(),
 			output.TaskProgress(), globals.HTTPClientHeader)
 		if err != nil {
-			formatter.PrintError(err, "Error installing "+library.String())
+			feedback.Errorf("Error installing %s: %v", library, err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 	}
diff --git a/cli/lib/list.go b/cli/lib/list.go
index dab2b334092..0de750b4529 100644
--- a/cli/lib/list.go
+++ b/cli/lib/list.go
@@ -18,16 +18,15 @@
 package lib
 
 import (
-	"fmt"
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
+	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
-	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/lib"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
-	"github.com/gosuri/uitable"
+	"github.com/arduino/arduino-cli/table"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"golang.org/x/net/context"
@@ -62,39 +61,29 @@ func runListCommand(cmd *cobra.Command, args []string) {
 		Updatable: listFlags.updatable,
 	})
 	if err != nil {
-		formatter.PrintError(err, "Error listing Libraries")
+		feedback.Errorf("Error listing Libraries: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
-	if len(res.GetInstalledLibrary()) > 0 {
-		results := res.GetInstalledLibrary()
-		if output.JSONOrElse(results) {
-			if len(results) > 0 {
-				fmt.Println(outputListLibrary(results))
-			} else {
-				formatter.Print("Error listing Libraries")
-			}
+
+	libs := res.GetInstalledLibrary()
+	if libs != nil {
+		if globals.OutputFormat == "json" {
+			feedback.PrintJSON(libs)
+		} else {
+			outputListLibrary(libs)
 		}
 	}
+
 	logrus.Info("Done")
 }
 
-func outputListLibrary(il []*rpc.InstalledLibrary) string {
-	table := uitable.New()
-	table.MaxColWidth = 100
-	table.Wrap = true
-
-	hasUpdates := false
-	for _, libMeta := range il {
-		if libMeta.GetRelease() != nil {
-			hasUpdates = true
-		}
+func outputListLibrary(il []*rpc.InstalledLibrary) {
+	if il == nil || len(il) == 0 {
+		return
 	}
 
-	if hasUpdates {
-		table.AddRow("Name", "Installed", "Available", "Location")
-	} else {
-		table.AddRow("Name", "Installed", "Location")
-	}
+	t := table.New()
+	t.SetHeader("Name", "Installed", "Available", "Location")
 
 	lastName := ""
 	for _, libMeta := range il {
@@ -110,15 +99,16 @@ func outputListLibrary(il []*rpc.InstalledLibrary) string {
 		if lib.ContainerPlatform != "" {
 			location = lib.GetContainerPlatform()
 		}
-		if hasUpdates {
-			var available string
-			if libMeta.GetRelease() != nil {
-				available = libMeta.GetRelease().GetVersion()
+
+		if libMeta.GetRelease() != nil {
+			available := libMeta.GetRelease().GetVersion()
+			if available != "" {
+				t.AddRow(name, lib.Version, available, location)
+			} else {
+				t.AddRow(name, lib.Version, "-", location)
 			}
-			table.AddRow(name, lib.Version, available, location)
-		} else {
-			table.AddRow(name, lib.Version, location)
 		}
 	}
-	return fmt.Sprintln(table)
+
+	feedback.Print(t.Render())
 }
diff --git a/cli/lib/search.go b/cli/lib/search.go
index b44263e7f23..4014acc56fc 100644
--- a/cli/lib/search.go
+++ b/cli/lib/search.go
@@ -25,10 +25,10 @@ import (
 	"strings"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
+	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
-	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/lib"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -60,43 +60,67 @@ func runSearchCommand(cmd *cobra.Command, args []string) {
 		Query:    (strings.Join(args, " ")),
 	})
 	if err != nil {
-		formatter.PrintError(err, "Error saerching for Library")
+		feedback.Errorf("Error saerching for Library: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	if output.JSONOrElse(searchResp) {
-		results := searchResp.GetLibraries()
-		sort.Slice(results, func(i, j int) bool {
-			return results[i].Name < results[j].Name
-		})
+	if globals.OutputFormat == "json" {
 		if searchFlags.namesOnly {
-			for _, result := range results {
-				fmt.Println(result.Name)
+			type LibName struct {
+				Name string `json:"name,required"`
 			}
-		} else {
-			if len(results) > 0 {
-				for _, result := range results {
-					outputSearchedLibrary(result)
-				}
-			} else {
-				formatter.Print("No libraries matching your search.")
+
+			type NamesOnly struct {
+				Libraries []LibName `json:"libraries,required"`
+			}
+
+			names := []LibName{}
+			results := searchResp.GetLibraries()
+			for _, lsr := range results {
+				names = append(names, LibName{lsr.Name})
 			}
+			feedback.PrintJSON(NamesOnly{
+				names,
+			})
+		} else {
+			feedback.PrintJSON(searchResp)
 		}
+	} else {
+		// get a sorted slice of results
+		results := searchResp.GetLibraries()
+		sort.Slice(results, func(i, j int) bool {
+			return results[i].Name < results[j].Name
+		})
+
+		// print all the things
+		outputSearchedLibrary(results, searchFlags.namesOnly)
 	}
+
 	logrus.Info("Done")
 }
 
-func outputSearchedLibrary(lsr *rpc.SearchedLibrary) {
-	fmt.Printf("Name: \"%s\"\n", lsr.Name)
-	fmt.Printf("  Author: %s\n", lsr.GetLatest().Author)
-	fmt.Printf("  Maintainer: %s\n", lsr.GetLatest().Maintainer)
-	fmt.Printf("  Sentence: %s\n", lsr.GetLatest().Sentence)
-	fmt.Printf("  Paragraph: %s\n", lsr.GetLatest().Paragraph)
-	fmt.Printf("  Website: %s\n", lsr.GetLatest().Website)
-	fmt.Printf("  Category: %s\n", lsr.GetLatest().Category)
-	fmt.Printf("  Architecture: %s\n", strings.Join(lsr.GetLatest().Architectures, ", "))
-	fmt.Printf("  Types: %s\n", strings.Join(lsr.GetLatest().Types, ", "))
-	fmt.Printf("  Versions: %s\n", strings.Replace(fmt.Sprint(versionsFromSearchedLibrary(lsr)), " ", ", ", -1))
+func outputSearchedLibrary(results []*rpc.SearchedLibrary, namesOnly bool) {
+	if len(results) == 0 {
+		feedback.Print("No libraries matching your search.")
+		return
+	}
+
+	for _, lsr := range results {
+		feedback.Printf(`Name: "%s"`, lsr.Name)
+		if namesOnly {
+			continue
+		}
+
+		feedback.Printf("  Author: %s", lsr.GetLatest().Author)
+		feedback.Printf("  Maintainer: %s", lsr.GetLatest().Maintainer)
+		feedback.Printf("  Sentence: %s", lsr.GetLatest().Sentence)
+		feedback.Printf("  Paragraph: %s", lsr.GetLatest().Paragraph)
+		feedback.Printf("  Website: %s", lsr.GetLatest().Website)
+		feedback.Printf("  Category: %s", lsr.GetLatest().Category)
+		feedback.Printf("  Architecture: %s", strings.Join(lsr.GetLatest().Architectures, ", "))
+		feedback.Printf("  Types: %s", strings.Join(lsr.GetLatest().Types, ", "))
+		feedback.Printf("  Versions: %s", strings.Replace(fmt.Sprint(versionsFromSearchedLibrary(lsr)), " ", ", ", -1))
+	}
 }
 
 func versionsFromSearchedLibrary(library *rpc.SearchedLibrary) []*semver.Version {
diff --git a/cli/lib/uninstall.go b/cli/lib/uninstall.go
index 8beb84fe463..8014062b6f4 100644
--- a/cli/lib/uninstall.go
+++ b/cli/lib/uninstall.go
@@ -22,11 +22,11 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/lib"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -50,7 +50,7 @@ func runUninstallCommand(cmd *cobra.Command, args []string) {
 	instance := instance.CreateInstaceIgnorePlatformIndexErrors()
 	refs, err := globals.ParseReferenceArgs(args, false)
 	if err != nil {
-		formatter.PrintError(err, "Invalid argument passed")
+		feedback.Errorf("Invalid argument passed: %v", err)
 		os.Exit(errorcodes.ErrBadArgument)
 	}
 
@@ -61,7 +61,7 @@ func runUninstallCommand(cmd *cobra.Command, args []string) {
 			Version:  library.Version,
 		}, output.TaskProgress())
 		if err != nil {
-			formatter.PrintError(err, "Error uninstalling "+library.String())
+			feedback.Errorf("Error uninstalling %s: %v", library, err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 	}
diff --git a/cli/lib/update_index.go b/cli/lib/update_index.go
index 5769aac8aa0..9301a14db1e 100644
--- a/cli/lib/update_index.go
+++ b/cli/lib/update_index.go
@@ -22,10 +22,10 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/spf13/cobra"
 )
@@ -43,7 +43,7 @@ func initUpdateIndexCommand() *cobra.Command {
 				Instance: instance,
 			}, output.ProgressBar())
 			if err != nil {
-				formatter.PrintError(err, "Error updating library index")
+				feedback.Errorf("Error updating library index: %v", err)
 				os.Exit(errorcodes.ErrGeneric)
 			}
 		},
diff --git a/cli/lib/upgrade.go b/cli/lib/upgrade.go
index 1f4fe653f75..fe4a90fc510 100644
--- a/cli/lib/upgrade.go
+++ b/cli/lib/upgrade.go
@@ -21,11 +21,11 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/arduino/arduino-cli/commands/lib"
-	"github.com/arduino/arduino-cli/common/formatter"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
@@ -52,13 +52,13 @@ func runUpgradeCommand(cmd *cobra.Command, args []string) {
 	if len(args) == 0 {
 		err := lib.LibraryUpgradeAll(instance.Id, output.ProgressBar(), output.TaskProgress(), globals.HTTPClientHeader)
 		if err != nil {
-			formatter.PrintError(err, "Error upgrading libraries")
+			feedback.Errorf("Error upgrading libraries: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 	} else {
 		err := lib.LibraryUpgrade(instance.Id, args, output.ProgressBar(), output.TaskProgress(), globals.HTTPClientHeader)
 		if err != nil {
-			formatter.PrintError(err, "Error upgrading libraries")
+			feedback.Errorf("Error upgrading libraries: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 	}
diff --git a/cli/output/output.go b/cli/output/output.go
deleted file mode 100644
index f9c6d4bf536..00000000000
--- a/cli/output/output.go
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// This file is part of arduino-cli.
-//
-// Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
-//
-// This software is released under the GNU General Public License version 3,
-// which covers the main part of arduino-cli.
-// The terms of this license can be found at:
-// https://www.gnu.org/licenses/gpl-3.0.en.html
-//
-// You can be released from the requirements of the above licenses by purchasing
-// a commercial license. Buying such a license is mandatory if you want to modify or
-// otherwise use the software for commercial activities involving the Arduino
-// software without disclosing the source code of your own applications. To purchase
-// a commercial license, send an email to license@arduino.cc.
-//
-
-package output
-
-import (
-	"encoding/json"
-	"fmt"
-	"os"
-
-	"github.com/arduino/arduino-cli/cli/errorcodes"
-	"github.com/arduino/arduino-cli/cli/globals"
-	"github.com/arduino/arduino-cli/commands"
-	"github.com/arduino/arduino-cli/common/formatter"
-	rpc "github.com/arduino/arduino-cli/rpc/commands"
-	colorable "github.com/mattn/go-colorable"
-)
-
-// TODO: Feed text output into colorable stdOut
-var _ = colorable.NewColorableStdout()
-
-// JSONOrElse outputs the JSON encoding of v if the JSON output format has been
-// selected by the user and returns false. Otherwise no output is produced and the
-// function returns true.
-func JSONOrElse(v interface{}) bool {
-	if !globals.OutputJSON {
-		return true
-	}
-	d, err := json.MarshalIndent(v, "", "  ")
-	if err != nil {
-		formatter.PrintError(err, "Error during JSON encoding of the output")
-		os.Exit(errorcodes.ErrGeneric)
-	}
-	fmt.Print(string(d))
-	return false
-}
-
-// ProgressBar returns a DownloadProgressCB that prints a progress bar.
-// If JSON output format has been selected, the callback outputs nothing.
-func ProgressBar() commands.DownloadProgressCB {
-	if !globals.OutputJSON {
-		return NewDownloadProgressBarCB()
-	}
-	return func(curr *rpc.DownloadProgress) {
-		// XXX: Output progress in JSON?
-	}
-}
-
-// TaskProgress returns a TaskProgressCB that prints the task progress.
-// If JSON output format has been selected, the callback outputs nothing.
-func TaskProgress() commands.TaskProgressCB {
-	if !globals.OutputJSON {
-		return NewTaskProgressCB()
-	}
-	return func(curr *rpc.TaskProgress) {
-		// XXX: Output progress in JSON?
-	}
-}
diff --git a/cli/output/rpc_progress.go b/cli/output/rpc_progress.go
index d5be3953190..e6b61a2e1ea 100644
--- a/cli/output/rpc_progress.go
+++ b/cli/output/rpc_progress.go
@@ -20,10 +20,34 @@ package output
 import (
 	"fmt"
 
+	"github.com/arduino/arduino-cli/cli/globals"
+	"github.com/arduino/arduino-cli/commands"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/cmaglie/pb"
 )
 
+// ProgressBar returns a DownloadProgressCB that prints a progress bar.
+// If JSON output format has been selected, the callback outputs nothing.
+func ProgressBar() commands.DownloadProgressCB {
+	if globals.OutputFormat != "json" {
+		return NewDownloadProgressBarCB()
+	}
+	return func(curr *rpc.DownloadProgress) {
+		// XXX: Output progress in JSON?
+	}
+}
+
+// TaskProgress returns a TaskProgressCB that prints the task progress.
+// If JSON output format has been selected, the callback outputs nothing.
+func TaskProgress() commands.TaskProgressCB {
+	if globals.OutputFormat != "json" {
+		return NewTaskProgressCB()
+	}
+	return func(curr *rpc.TaskProgress) {
+		// XXX: Output progress in JSON?
+	}
+}
+
 // NewDownloadProgressBarCB creates a progress bar callback that outputs a progress
 // bar on the terminal
 func NewDownloadProgressBarCB() func(*rpc.DownloadProgress) {
diff --git a/cli/output/text.go b/cli/output/text.go
deleted file mode 100644
index f22d65fa3b6..00000000000
--- a/cli/output/text.go
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package output
-
-import (
-	"fmt"
-	"unicode/utf8"
-
-	"github.com/fatih/color"
-)
-
-var red = color.New(color.FgRed).SprintfFunc()
-var blue = color.New(color.FgBlue).SprintfFunc()
-var green = color.New(color.FgGreen).SprintfFunc()
-var yellow = color.New(color.FgYellow).SprintfFunc()
-var white = color.New(color.FgWhite).SprintfFunc()
-var hiWhite = color.New(color.FgHiWhite).SprintfFunc()
-
-// Red FIXMEDOC
-func Red(in string) *Text {
-	return &Text{raw: red(in), clean: in}
-}
-
-// Blue FIXMEDOC
-func Blue(in string) *Text {
-	return &Text{raw: blue(in), clean: in}
-}
-
-// Green FIXMEDOC
-func Green(in string) *Text {
-	return &Text{raw: green(in), clean: in}
-}
-
-// Yellow FIXMEDOC
-func Yellow(in string) *Text {
-	return &Text{raw: yellow(in), clean: in}
-}
-
-// White FIXMEDOC
-func White(in string) *Text {
-	return &Text{raw: white(in), clean: in}
-}
-
-// HiWhite FIXMEDOC
-func HiWhite(in string) *Text {
-	return &Text{raw: hiWhite(in), clean: in}
-}
-
-// TextBox FIXMEDOC
-type TextBox interface {
-	Len() int
-	Pad(availableWidth int) string
-}
-
-// Text FIXMEDOC
-type Text struct {
-	clean   string
-	raw     string
-	justify int
-}
-
-// Len FIXMEDOC
-func (t *Text) Len() int {
-	return utf8.RuneCountInString(t.clean)
-}
-
-// func (t *Text) String() string {
-// 	return t.raw
-// }
-
-// JustifyLeft FIXMEDOC
-func (t *Text) JustifyLeft() {
-	t.justify = 0
-}
-
-// JustifyCenter FIXMEDOC
-func (t *Text) JustifyCenter() {
-	t.justify = 1
-}
-
-// JustifyRight FIXMEDOC
-func (t *Text) JustifyRight() {
-	t.justify = 2
-}
-
-// Pad FIXMEDOC
-func (t *Text) Pad(totalLen int) string {
-	delta := totalLen - t.Len()
-	switch t.justify {
-	case 0:
-		return t.raw + spaces(delta)
-	case 1:
-		return spaces(delta/2) + t.raw + spaces(delta-delta/2)
-	case 2:
-		return spaces(delta) + t.raw
-	}
-	panic(fmt.Sprintf("internal error: invalid justify %d", t.justify))
-}
-
-func spaces(n int) string {
-	res := ""
-	for n > 0 {
-		res += " "
-		n--
-	}
-	return res
-}
-
-func sprintf(format string, args ...interface{}) TextBox {
-	cleanArgs := make([]interface{}, len(args))
-	for i, arg := range args {
-		if text, ok := arg.(*Text); ok {
-			cleanArgs[i], args[i] = text.clean, text.raw
-		} else {
-			cleanArgs[i] = args[i]
-		}
-	}
-
-	return &Text{
-		clean: fmt.Sprintf(format, cleanArgs...),
-		raw:   fmt.Sprintf(format, args...),
-	}
-}
diff --git a/cli/sketch/new.go b/cli/sketch/new.go
index 39a640e354e..8121a152194 100644
--- a/cli/sketch/new.go
+++ b/cli/sketch/new.go
@@ -21,8 +21,8 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
-	"github.com/arduino/arduino-cli/common/formatter"
 	"github.com/spf13/cobra"
 )
 
@@ -49,15 +49,15 @@ void loop() {
 func runNewCommand(cmd *cobra.Command, args []string) {
 	sketchDir := globals.Config.SketchbookDir.Join(args[0])
 	if err := sketchDir.MkdirAll(); err != nil {
-		formatter.PrintError(err, "Could not create sketch directory.")
+		feedback.Errorf("Could not create sketch directory: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
 	sketchFile := sketchDir.Join(args[0] + ".ino")
 	if err := sketchFile.WriteFile(emptySketch); err != nil {
-		formatter.PrintError(err, "Error creating sketch.")
+		feedback.Errorf("Error creating sketch: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	formatter.Print("Sketch created in: " + sketchDir.String())
+	feedback.Print("Sketch created in: " + sketchDir.String())
 }
diff --git a/cli/upload/upload.go b/cli/upload/upload.go
index 35c4649d222..92abdc26fb1 100644
--- a/cli/upload/upload.go
+++ b/cli/upload/upload.go
@@ -22,9 +22,9 @@ import (
 	"os"
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/instance"
 	"github.com/arduino/arduino-cli/commands/upload"
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"github.com/arduino/go-paths-helper"
 	"github.com/sirupsen/logrus"
@@ -79,7 +79,7 @@ func run(command *cobra.Command, args []string) {
 	}, os.Stdout, os.Stderr)
 
 	if err != nil {
-		formatter.PrintError(err, "Error during Upload")
+		feedback.Errorf("Error during Upload: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 }
@@ -92,7 +92,7 @@ func initSketchPath(sketchPath *paths.Path) *paths.Path {
 
 	wd, err := paths.Getwd()
 	if err != nil {
-		formatter.PrintError(err, "Couldn't get current working directory")
+		feedback.Errorf("Couldn't get current working directory: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 	logrus.Infof("Reading sketch from dir: %s", wd)
diff --git a/cli/version/version.go b/cli/version/version.go
index 7c5e720e974..15c90054b2c 100644
--- a/cli/version/version.go
+++ b/cli/version/version.go
@@ -18,11 +18,10 @@
 package version
 
 import (
-	"fmt"
 	"os"
 
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/globals"
-	"github.com/arduino/arduino-cli/cli/output"
 	"github.com/spf13/cobra"
 )
 
@@ -39,7 +38,9 @@ func NewCommand() *cobra.Command {
 }
 
 func run(cmd *cobra.Command, args []string) {
-	if output.JSONOrElse(globals.VersionInfo) {
-		fmt.Printf("%s\n", globals.VersionInfo)
+	if globals.OutputFormat == "json" {
+		feedback.PrintJSON(globals.VersionInfo)
+	} else {
+		feedback.Print(globals.VersionInfo)
 	}
 }
diff --git a/commands/compile/compile.go b/commands/compile/compile.go
index 0a6650a45a0..e2a0a7e6f01 100644
--- a/commands/compile/compile.go
+++ b/commands/compile/compile.go
@@ -78,7 +78,7 @@ func Compile(ctx context.Context, req *rpc.CompileReq, outStream, errStream io.W
 		// errorMessage := fmt.Sprintf(
 		// 	"\"%[1]s:%[2]s\" platform is not installed, please install it by running \""+
 		// 		version.GetAppName()+" core install %[1]s:%[2]s\".", fqbn.Package, fqbn.PlatformArch)
-		// formatter.PrintErrorMessage(errorMessage)
+		// feedback.Error(errorMessage)
 		return nil, fmt.Errorf("platform not installed")
 	}
 
diff --git a/commands/daemon/client_test.go b/commands/daemon/client_test.go
index 807a9b07b96..75a78cdef67 100644
--- a/commands/daemon/client_test.go
+++ b/commands/daemon/client_test.go
@@ -26,7 +26,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/arduino/arduino-cli/common/formatter"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	"google.golang.org/grpc"
 )
@@ -489,7 +488,7 @@ func TestWithClientE2E(t *testing.T) {
 		Query:    "audio",
 	})
 	if err != nil {
-		formatter.PrintError(err, "Error searching for library")
+		fmt.Printf("Error searching for library: %v", err)
 		os.Exit(1)
 	}
 	fmt.Printf("---> %+v\n", libSearchResp)
@@ -503,7 +502,7 @@ func TestWithClientE2E(t *testing.T) {
 		Updatable: false,
 	})
 	if err != nil {
-		formatter.PrintError(err, "Error List Library")
+		fmt.Printf("Error List Library: %v", err)
 		os.Exit(1)
 	}
 	fmt.Printf("---> %+v\n", libLstResp)
diff --git a/commands/upload/upload.go b/commands/upload/upload.go
index 446d6036670..29f1895a236 100644
--- a/commands/upload/upload.go
+++ b/commands/upload/upload.go
@@ -28,8 +28,8 @@ import (
 
 	"github.com/arduino/arduino-cli/arduino/cores"
 	"github.com/arduino/arduino-cli/arduino/sketches"
+	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/commands"
-	"github.com/arduino/arduino-cli/common/formatter"
 	"github.com/arduino/arduino-cli/executils"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
 	paths "github.com/arduino/go-paths-helper"
@@ -203,7 +203,7 @@ func Upload(ctx context.Context, req *rpc.UploadReq, outStream io.Writer, errStr
 		if p, err := waitForNewSerialPort(); err != nil {
 			return nil, fmt.Errorf("cannot detect serial ports: %s", err)
 		} else if p == "" {
-			formatter.Print("No new serial port detected.")
+			feedback.Print("No new serial port detected.")
 		} else {
 			actualPort = p
 		}
diff --git a/common/formatter/README.adoc b/common/formatter/README.adoc
deleted file mode 100644
index 080ef6f44db..00000000000
--- a/common/formatter/README.adoc
+++ /dev/null
@@ -1,111 +0,0 @@
-= Formatters Package
-Alessandro Sanino <a.sanino@arduino.cc>
-:source-highlighter: pygments
-:pygments-style: manni
-
-Formatters is a package which contains a useful and customizable set of formatters for your application.
-
-. Formatter - A generic `interface` to format data.
-. TextFormatter - Formats and Prints `interface{}` to Text String - Binded to `String()` method.
-. JSONFormatter - Formats and Prints `interface{}` to JSON String - Binded to `json.Marshal()` method.
-
-== Usage 
-[source, go]
-----
-type TestType struct {
-   field1 string `json:"field1,omitempty"` //same json tag as required by json.Marshal
-   field2 int    `json:"field2"`           //same json tag as required by json.Marshal
-}
-
-var a Formatter = TextFormatter{}
-var b JSONFormatter = JSONFormatter{} 
-
-var test TestType{
-    field1 : "test",
-    field2 : 42,
-}
-
-var testString = a.Format(test) 
-fmt.Println(testString) // Prints test.String()
-a.Print(test) // Does the same.
-
-testString = b.Format(test) 
-fmt.Println(testString) // Prints { field1 : "test", field2 : "42" }
-b.Print(test) // Does the same
-----
-
-=== The default formatter
-There is a global formatter which can be used across other packages. You can set it with the `formatter.setFormatter(Formatter)` function.
-[source, go]
-----
-
-type TestType struct {
-   field1 string `json:"field1,omitempty"` //same json tag as required by json.Marshal
-   field2 int    `json:"field2"`           //same json tag as required by json.Marshal
-}
-
-var test TestType{
-    field1 : "test",
-    field2 : 42,
-}
-
-formatter.setFormatter("text")
-formatter.Print(test) // Prints string representation of the test struct, using String().
-formatter.setFormatter("json")
-formatter.Print(test) // Prints test struct as a JSON object.
-----
-
-== Custom Formatters
-It is possible to add custom formatters with the `formatter.AddCustomFormatter(format, Formatter)` function.
-
-Let's assume we want to add a YamlFormatter which parses to Yaml Objects.
-[source, go]
-----
-// Solution 1 : YamlFormatter is a struct.
-type YamlFormatter struct{}
-
-func (yf YamlFormatter) Format(msg interface{}) (string, error) {
-    // do something and return values.
-}
-
-//...
-formatter.AddCustomFormatter("yaml", YamlFormatter{})
-//...
-
-// Solution 2 : YamlFormatter is a int8 or other primitive type, useful for formatters which does not need fields.
-type YamlFormatter int8
-
-func (yf YamlFormatter) Format(msg interface{}) (string, error) {
-    // do something and return values.
-}
-
-//...
-formatter.AddCustomFormatter("yaml", YamlFormatter(3)) // every int8 is valid, this is a cast.
-----
-
-== Printing Errors
-Just use `formatter.PrintErrorMessage(string)` or `formatter.PrintError(error)` function.
-[source, go]
-----
-var errormessage string = "Some error occurred"
-formatter.PrintErrorMessage(errormessage) // Prints the error formatted properly.
-
-err := functionWhichMayReturnAnError()
-if err != nil {
-    formatter.PrintError(err)
-}
-----
-
-== Debug with JSON values
-`JSONFormatter` by default does not print what it cannot parse (everything which is not a map or a struct).
-If you are in a debugging session you will print an error message instead.
-Sessions are opened by `formatterInstance.StartDebug()` and closed by `formatterInstance.EndDebug()`
-
-[source, go]
-----
-formatter = JSONFormatter{}
-formatter.StartDebug()
-formatter.Print("Invalid String")
-//Outputs "\"Invalid String\" is a non supported data, please use map or struct"
-formatter.EndDebug()
-----
\ No newline at end of file
diff --git a/common/formatter/download.go b/common/formatter/download.go
deleted file mode 100644
index 545a3d0d581..00000000000
--- a/common/formatter/download.go
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter
-
-import (
-	"go.bug.st/downloader"
-)
-
-// DownloadProgressBar prints a progress bar from a running download Request
-func DownloadProgressBar(d *downloader.Downloader, prefix string) {
-	defaultFormatter.DownloadProgressBar(d, prefix)
-}
diff --git a/common/formatter/errors.go b/common/formatter/errors.go
deleted file mode 100644
index 3007ca1bc96..00000000000
--- a/common/formatter/errors.go
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter
-
-import (
-	"encoding/json"
-	"strings"
-)
-
-// ErrorMessage represents an Error with an attached message.
-type ErrorMessage struct {
-	Message  string
-	CausedBy error
-}
-
-// MarshalJSON allows to marshal this object as a JSON object.
-func (err ErrorMessage) MarshalJSON() ([]byte, error) {
-	type JSONErrorMessage struct {
-		Message string
-		Cause   string
-	}
-
-	cause := ""
-	if err.CausedBy != nil {
-		cause = err.CausedBy.Error()
-	}
-	return json.Marshal(JSONErrorMessage{
-		Message: err.Message,
-		Cause:   cause,
-	})
-}
-
-// String returns a string representation of the Error.
-func (err ErrorMessage) String() string {
-	if err.CausedBy == nil {
-		return err.Message
-	}
-	return "Error: " + err.CausedBy.Error() + "\n" + err.Message
-}
-
-// PrintErrorMessage formats and prints info about an error message.
-func PrintErrorMessage(msg string) {
-	msg = strings.TrimSpace(msg)
-	PrintError(nil, msg)
-}
-
-// PrintError formats and prints info about an error.
-//
-// Err is the error to print full info while msg is the user friendly message to print.
-func PrintError(err error, msg string) {
-	if logger != nil {
-		logger.WithError(err).Error(msg)
-	}
-	Print(ErrorMessage{CausedBy: err, Message: msg})
-}
diff --git a/common/formatter/errors_test.go b/common/formatter/errors_test.go
deleted file mode 100644
index 4f45a0031c4..00000000000
--- a/common/formatter/errors_test.go
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter
-
-import (
-	"fmt"
-)
-
-func ExamplePrintError() {
-	SetFormatter("text")
-	PrintErrorMessage("error message")
-	PrintError(fmt.Errorf("inner error message"), "outer error message")
-	SetFormatter("json")
-	PrintErrorMessage("error message")
-	PrintError(fmt.Errorf("inner error message"), "outer error message")
-
-	// Output:
-	// error message
-	// Error: inner error message
-	// outer error message
-	// {"Message":"error message","Cause":""}
-	// {"Message":"outer error message","Cause":"inner error message"}
-}
diff --git a/common/formatter/examples_test.go b/common/formatter/examples_test.go
deleted file mode 100644
index 47fd6334c18..00000000000
--- a/common/formatter/examples_test.go
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter_test
-
-import (
-	"fmt"
-
-	"github.com/arduino/arduino-cli/common/formatter"
-)
-
-type TestStruct struct {
-	Value int `json:"value"`
-}
-
-func (ts TestStruct) String() string {
-	return fmt.Sprint("VALUE = ", ts.Value)
-}
-
-func ExampleJSONFormatter_Format() {
-	var example struct {
-		Field1 string `json:"field1"`
-		Field2 int    `json:"field2"`
-		Field3 struct {
-			Inner1 string  `json:"inner1"`
-			Inner2 float32 `json:"inner2"`
-		} `json:"field3"`
-	}
-
-	example.Field1 = "test"
-	example.Field2 = 10
-	example.Field3.Inner1 = "inner test"
-	example.Field3.Inner2 = 10.432412
-
-	var jf formatter.JSONFormatter
-	fmt.Println(jf.Format(example))
-
-	var example2 = 3.14
-	fmt.Println(jf.Format(example2))
-
-	var example3 float32 = 3.14
-	fmt.Println(jf.Format(example3))
-
-	// Output:
-	// {"field1":"test","field2":10,"field3":{"inner1":"inner test","inner2":10.432412}} <nil>
-	//  float64 ignored
-	//  float32 ignored
-}
-
-func ExampleJSONFormatter_Format_debug() {
-	valid := TestStruct{20}
-	invalid := "invalid"
-	jf := formatter.JSONFormatter{
-		Debug: false,
-	}
-	// using struct
-	fmt.Println(jf.Format(valid))
-
-	// using string (invalid sine it's not a struct or a map)
-	fmt.Println(jf.Format(invalid))
-
-	jf.Debug = true
-	fmt.Println(jf.Format(valid))
-	fmt.Println(jf.Format(invalid))
-
-	// using map
-	newValue := make(map[string]int)
-	newValue["value2"] = 10
-
-	fmt.Println(jf.Format(newValue))
-
-	// Output:
-	// {"value":20} <nil>
-	//  string ignored
-	// {"value":20} <nil>
-	//  string ignored
-	// {"value2":10} <nil>
-}
-
-func ExampleSetFormatter() {
-	formatter.SetFormatter("text")
-	fmt.Println(formatter.Format(TestStruct{5}))
-	formatter.SetFormatter("json")
-	fmt.Println(formatter.Format(TestStruct{10}))
-	fmt.Println(formatter.Format(5))
-
-	// Output:
-	// VALUE = 5 <nil>
-	// {"value":10} <nil>
-	//  int ignored
-}
diff --git a/common/formatter/formatter.go b/common/formatter/formatter.go
deleted file mode 100644
index b06a30031bf..00000000000
--- a/common/formatter/formatter.go
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/sirupsen/logrus"
-	"go.bug.st/downloader"
-)
-
-// Formatter interface represents a generic formatter. It allows to print and format Messages.
-type Formatter interface {
-	// Format formats a parameter if possible, otherwise it returns an error.
-	Format(interface{}) (string, error)
-
-	// DownloadProgressBar outputs a progress bar if possible. Waits until the download ends.
-	DownloadProgressBar(d *downloader.Downloader, prefix string)
-}
-
-// PrintFunc represents a function used to print formatted data.
-type PrintFunc func(Formatter, interface{}) error
-
-var formatters = map[string]Formatter{
-	"text": &TextFormatter{},
-	"json": &JSONFormatter{},
-}
-var defaultFormatter = formatters["text"]
-
-var logger *logrus.Logger
-
-// SetFormatter sets the defaults format to the one specified, if valid. Otherwise it returns an error.
-func SetFormatter(formatName string) error {
-	if !IsSupported(formatName) {
-		return fmt.Errorf("formatter for %s format not implemented", formatName)
-	}
-	defaultFormatter = formatters[formatName]
-	return nil
-}
-
-// SetLogger sets the logger for printed errors.
-func SetLogger(log *logrus.Logger) {
-	logger = log
-}
-
-// IsSupported returns whether the format specified is supported or not by the current set of formatters.
-func IsSupported(formatName string) bool {
-	_, supported := formatters[formatName]
-	return supported
-}
-
-// IsCurrentFormat returns if the specified format is the one currently set.
-func IsCurrentFormat(formatName string) bool {
-	return formatters[formatName] == defaultFormatter
-}
-
-// AddCustomFormatter adds a custom formatter to the list of available formatters of this package.
-//
-// If a key is already present, it is replaced and old Value is returned.
-//
-// If format was not already added as supported, the custom formatter is
-// simply added, and oldValue returns nil.
-func AddCustomFormatter(formatName string, form Formatter) Formatter {
-	oldValue := formatters[formatName]
-	formatters[formatName] = form
-	return oldValue
-}
-
-// Format formats a message formatted using a Formatter specified by SetFormatter(...) function.
-func Format(msg interface{}) (string, error) {
-	if defaultFormatter == nil {
-		return "", errors.New("no formatter set")
-	}
-	return defaultFormatter.Format(msg)
-}
-
-// Print prints a message formatted using a Formatter specified by SetFormatter(...) function.
-func Print(msg interface{}) error {
-	output, err := defaultFormatter.Format(msg)
-	if err != nil {
-		return err
-	}
-	fmt.Println(output)
-	return nil
-}
diff --git a/common/formatter/json.go b/common/formatter/json.go
deleted file mode 100644
index aede8643957..00000000000
--- a/common/formatter/json.go
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter
-
-import (
-	"encoding/json"
-	"fmt"
-	"reflect"
-
-	"go.bug.st/downloader"
-)
-
-// JSONFormatter is a Formatter that output JSON objects.
-// Intermediate results or interactive messages are ignored.
-type JSONFormatter struct {
-	Debug bool // if false, errors are not shown. Unparsable inputs are skipped. Otherwise an error message is shown.
-}
-
-// Format implements Formatter interface
-func (jf *JSONFormatter) Format(msg interface{}) (string, error) {
-	t := reflect.TypeOf(msg).Kind().String()
-	if t == "ptr" {
-		t = reflect.Indirect(reflect.ValueOf(msg)).Kind().String()
-	}
-	switch t {
-	case "struct", "map":
-		ret, err := json.Marshal(msg)
-		return string(ret), err
-	default:
-		return "", fmt.Errorf("%s ignored", t)
-	}
-}
-
-// DownloadProgressBar implements Formatter interface
-func (jf *JSONFormatter) DownloadProgressBar(d *downloader.Downloader, prefix string) {
-	d.Run()
-}
diff --git a/common/formatter/message.go b/common/formatter/message.go
deleted file mode 100644
index 8af18eb2496..00000000000
--- a/common/formatter/message.go
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter
-
-import (
-	"fmt"
-	"strings"
-)
-
-// Message represents a formattable message.
-type Message struct {
-	Header string      `json:"header,omitempty"` // What is written before parsing Data.
-	Data   interface{} `json:"data,omitempty"`   // The Data of the message, this should be the most important data to convert.
-	Footer string      `json:"footer,omitempty"` // What is written after parsing Data.
-}
-
-// String returns a string representation of the object.
-func (m *Message) String() string {
-	data := fmt.Sprintf("%s", m.Data)
-	message := m.Header
-	if message != "" {
-		message += "\n"
-	}
-	message += data
-	if data != "" {
-		message += "\n"
-	}
-	return strings.TrimSpace(message + m.Footer)
-}
diff --git a/common/formatter/print_test.go b/common/formatter/print_test.go
deleted file mode 100644
index ead2c0842cf..00000000000
--- a/common/formatter/print_test.go
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter_test
-
-import (
-	"fmt"
-
-	"github.com/arduino/arduino-cli/common/formatter"
-)
-
-type ExType struct {
-	Field1 string `json:"field1"`
-	Field2 int    `json:"field2"`
-	Field3 struct {
-		Inner1 string  `json:"inner1"`
-		Inner2 float32 `json:"inner2"`
-	} `json:"field3"`
-}
-
-func (et ExType) String() string {
-	return fmt.Sprintln("Field1:", et.Field1) +
-		fmt.Sprintln("Field2:", et.Field2) +
-		fmt.Sprintln("Field3.Inner1:", et.Field3.Inner1) +
-		fmt.Sprintln("Field3.Inner2:", et.Field3.Inner2)
-}
-
-func ExamplePrint() {
-	var example ExType
-
-	example.Field1 = "test"
-	example.Field2 = 10
-	example.Field3.Inner1 = "inner test"
-	example.Field3.Inner2 = 10.432412
-
-	formatter.SetFormatter("json")
-	formatter.Print(example)
-	formatter.SetFormatter("text")
-	formatter.Print(example)
-	// Output:
-	// {"field1":"test","field2":10,"field3":{"inner1":"inner test","inner2":10.432412}}
-	// Field1: test
-	// Field2: 10
-	// Field3.Inner1: inner test
-	// Field3.Inner2: 10.432412
-}
-
-func ExamplePrint_alternative() {
-	formatter.SetFormatter("text")
-	formatter.Print(TestStruct{5})
-	formatter.Print("a string")
-
-	formatter.SetFormatter("json")
-	formatter.Print(TestStruct{10})
-	formatter.Print("a string")
-
-	// Output:
-	// VALUE = 5
-	// a string
-	// {"value":10}
-}
diff --git a/common/formatter/results.go b/common/formatter/results.go
deleted file mode 100644
index 778a9e8716e..00000000000
--- a/common/formatter/results.go
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter
-
-import (
-	"encoding/json"
-	"fmt"
-)
-
-type resultMessage struct {
-	message interface{}
-}
-
-// MarshalJSON allows to marshal this object as a JSON object.
-func (res resultMessage) MarshalJSON() ([]byte, error) {
-	return json.Marshal(map[string]interface{}{
-		"result": res.message,
-	})
-}
-
-func (res resultMessage) String() string {
-	return fmt.Sprint(res.message)
-}
-
-// PrintResult prints a value as a result from an operation.
-func PrintResult(res interface{}) {
-	Print(resultMessage{
-		message: res,
-	})
-}
diff --git a/common/formatter/text.go b/common/formatter/text.go
deleted file mode 100644
index c6f6dd815cd..00000000000
--- a/common/formatter/text.go
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
-
-package formatter
-
-import (
-	"errors"
-	"fmt"
-	"time"
-
-	"github.com/cmaglie/pb"
-	"go.bug.st/downloader"
-)
-
-// TextFormatter represents a Formatter for a text console
-type TextFormatter struct{}
-
-// Format implements Formatter interface
-func (tp *TextFormatter) Format(msg interface{}) (string, error) {
-	if msg == nil {
-		return "<nil>", nil
-	}
-	if str, ok := msg.(string); ok {
-		return str, nil
-	}
-	str, ok := msg.(fmt.Stringer)
-	if !ok {
-		return "", errors.New("object can't be formatted as text")
-	}
-	return str.String(), nil
-}
-
-// DownloadProgressBar implements Formatter interface
-func (tp *TextFormatter) DownloadProgressBar(d *downloader.Downloader, prefix string) {
-	t := time.NewTicker(250 * time.Millisecond)
-	defer t.Stop()
-
-	bar := pb.StartNew(int(d.Size()))
-	bar.SetUnits(pb.U_BYTES)
-	bar.Prefix(prefix)
-	update := func(curr int64) {
-		bar.Set(int(curr))
-	}
-	d.RunAndPoll(update, 250*time.Millisecond)
-	bar.FinishPrintOver(prefix + " downloaded")
-}
diff --git a/go.mod b/go.mod
index c019a221cf5..bb1bd25beda 100644
--- a/go.mod
+++ b/go.mod
@@ -31,6 +31,7 @@ require (
 	github.com/oleksandr/bonjour v0.0.0-20160508152359-5dcf00d8b228 // indirect
 	github.com/pkg/errors v0.8.1
 	github.com/pmylund/sortutil v0.0.0-20120526081524-abeda66eb583
+	github.com/rifflock/lfshook v0.0.0-20180920164130-b9218ef580f5
 	github.com/schollz/closestmatch v2.1.0+incompatible
 	github.com/sergi/go-diff v1.0.0
 	github.com/sirupsen/logrus v1.4.2
diff --git a/go.sum b/go.sum
index 7e58fcf4410..b3c9320a621 100644
--- a/go.sum
+++ b/go.sum
@@ -13,6 +13,8 @@ github.com/arduino/go-timeutils v0.0.0-20171220113728-d1dd9e313b1b/go.mod h1:uwG
 github.com/arduino/go-win32-utils v0.0.0-20180330194947-ed041402e83b h1:3PjgYG5gVPA7cipp7vIR2lF96KkEJIFBJ+ANnuv6J20=
 github.com/arduino/go-win32-utils v0.0.0-20180330194947-ed041402e83b/go.mod h1:iIPnclBMYm1g32Q5kXoqng4jLhMStReIP7ZxaoUC2y8=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/cheynewallace/tabby v1.1.0 h1:XtG/ZanoIvNZHfe0cClhWLzD/16GGF9UD7mMdWwYnCQ=
+github.com/cheynewallace/tabby v1.1.0/go.mod h1:Pba/6cUL8uYqvOc9RkyvFbHGrQ9wShyrn6/S/1OYVys=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cmaglie/pb v1.0.27 h1:ynGj8vBXR+dtj4B7Q/W/qGt31771Ux5iFfRQBnwdQiA=
 github.com/cmaglie/pb v1.0.27/go.mod h1:GilkKZMXYjBA4NxItWFfO+lwkp59PLHQ+IOW/b/kmZI=
@@ -36,6 +38,7 @@ github.com/fluxio/iohelpers v0.0.0-20160419043813-3a4dd67a94d2 h1:C6sOwknxwWfLBE
 github.com/fluxio/iohelpers v0.0.0-20160419043813-3a4dd67a94d2/go.mod h1:c7sGIpDbBo0JZZ1tKyC1p5smWf8QcUjK4bFtZjHAecg=
 github.com/fluxio/multierror v0.0.0-20160419044231-9c68d39025e5 h1:R8jFW6G/bjoXjWPFrEfw9G5YQDlYhwV4AC+Eonu6wmk=
 github.com/fluxio/multierror v0.0.0-20160419044231-9c68d39025e5/go.mod h1:BEUDl7FG1cc76sM0J0x8dqr6RhiL4uqvk6oFkwuNyuM=
+github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
@@ -79,6 +82,8 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/pmylund/sortutil v0.0.0-20120526081524-abeda66eb583 h1:ogHi8YLNeIxABOaH6UgtbwkODheuAK+ErP8gWXYQVj0=
 github.com/pmylund/sortutil v0.0.0-20120526081524-abeda66eb583/go.mod h1:sFPiU/UgDcsQVu3vkqpZLCXWFwUoQRpHGu9ATihPAl0=
+github.com/rifflock/lfshook v0.0.0-20180920164130-b9218ef580f5 h1:mZHayPoR0lNmnHyvtYjDeq0zlVHn9K/ZXoy17ylucdo=
+github.com/rifflock/lfshook v0.0.0-20180920164130-b9218ef580f5/go.mod h1:GEXHk5HgEKCvEIIrSpFI3ozzG5xOKA2DVlEX/gGnewM=
 github.com/russross/blackfriday v1.5.2 h1:HyvC0ARfnZBqnXwABFeSZHpKvJHJJfPz81GNueLj0oo=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/schollz/closestmatch v2.1.0+incompatible h1:Uel2GXEpJqOWBrlyI+oY9LTiyyjYS17cCYRqP13/SHk=
diff --git a/main.go b/main.go
index 9b4fc380e23..db76bae29d0 100644
--- a/main.go
+++ b/main.go
@@ -22,12 +22,10 @@ import (
 
 	"github.com/arduino/arduino-cli/cli"
 	"github.com/arduino/arduino-cli/cli/errorcodes"
-	"github.com/arduino/arduino-cli/common/formatter"
 )
 
 func main() {
 	if err := cli.ArduinoCli.Execute(); err != nil {
-		formatter.PrintError(err, "Bad exit.")
 		os.Exit(errorcodes.ErrGeneric)
 	}
 }
diff --git a/table/cell.go b/table/cell.go
new file mode 100644
index 00000000000..f0fa31aa017
--- /dev/null
+++ b/table/cell.go
@@ -0,0 +1,87 @@
+// This file is part of arduino-cli.
+//
+// Copyright 2019 ARDUINO SA (http://www.arduino.cc/)
+//
+// This software is released under the GNU General Public License version 3,
+// which covers the main part of arduino-cli.
+// The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to modify or
+// otherwise use the software for commercial activities involving the Arduino
+// software without disclosing the source code of your own applications. To purchase
+// a commercial license, send an email to license@arduino.cc.
+
+package table
+
+import (
+	"fmt"
+	"unicode/utf8"
+
+	"github.com/fatih/color"
+)
+
+// JustifyMode is used to configure text alignment on cells
+type JustifyMode int
+
+// Justify mode enumeration
+const (
+	JustifyLeft JustifyMode = iota
+	JustifyCenter
+	JustifyRight
+)
+
+// Cell represents a Table cell
+type Cell struct {
+	clean   string
+	raw     string
+	justify JustifyMode
+}
+
+// NewCell creates a new cell. Color can be nil.
+func NewCell(text string, c *color.Color) *Cell {
+	styled := text
+	if c != nil {
+		styled = c.SprintFunc()(text)
+	}
+
+	return &Cell{
+		raw:     styled,
+		clean:   text,
+		justify: JustifyLeft,
+	}
+}
+
+// Len returns the size of the cell, taking into account color codes
+func (t *Cell) Len() int {
+	return utf8.RuneCountInString(t.clean)
+}
+
+// Justify sets text justification
+func (t *Cell) Justify(mode JustifyMode) {
+	t.justify = mode
+}
+
+// Pad sets the cell padding
+func (t *Cell) Pad(totalLen int) string {
+	delta := totalLen - t.Len()
+	switch t.justify {
+	case 0:
+		return t.raw + spaces(delta)
+	case 1:
+		return spaces(delta/2) + t.raw + spaces(delta-delta/2)
+	case 2:
+		return spaces(delta) + t.raw
+	}
+	panic(fmt.Sprintf("internal error: invalid justify %d", t.justify))
+}
+
+func spaces(n int) string {
+	res := ""
+	for n > 0 {
+		res += " "
+		n--
+	}
+	return res
+}
diff --git a/cli/output/table.go b/table/table.go
similarity index 56%
rename from cli/output/table.go
rename to table/table.go
index efc9aca92cd..25f5f875ac0 100644
--- a/cli/output/table.go
+++ b/table/table.go
@@ -1,93 +1,69 @@
-/*
- * This file is part of arduino-cli.
- *
- * Copyright 2018 ARDUINO SA (http://www.arduino.cc/)
- *
- * This software is released under the GNU General Public License version 3,
- * which covers the main part of arduino-cli.
- * The terms of this license can be found at:
- * https://www.gnu.org/licenses/gpl-3.0.en.html
- *
- * You can be released from the requirements of the above licenses by purchasing
- * a commercial license. Buying such a license is mandatory if you want to modify or
- * otherwise use the software for commercial activities involving the Arduino
- * software without disclosing the source code of your own applications. To purchase
- * a commercial license, send an email to license@arduino.cc.
- */
+// This file is part of arduino-cli.
+//
+// Copyright 2019 ARDUINO SA (http://www.arduino.cc/)
+//
+// This software is released under the GNU General Public License version 3,
+// which covers the main part of arduino-cli.
+// The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to modify or
+// otherwise use the software for commercial activities involving the Arduino
+// software without disclosing the source code of your own applications. To purchase
+// a commercial license, send an email to license@arduino.cc.
 
-package output
+package table
 
 import (
 	"fmt"
 	"math"
 )
 
-// Table FIXMEDOC
+// ColumnWidthMode is used to configure columns type
+type ColumnWidthMode int
+
+const (
+	// Minimum FIXMEDOC
+	Minimum ColumnWidthMode = iota
+	// Average FIXMEDOC
+	Average
+)
+
+// Table represent a table that can be printed on a terminal
 type Table struct {
 	hasHeader        bool
 	columnsCount     int
-	columnsWidthMode []TableColumnWidthMode
-	rows             []*TableRow
+	columnsWidthMode []ColumnWidthMode
+	rows             []*tableRow
 }
 
-// TableRow FIXMEDOC
-type TableRow struct {
-	cells []TextBox
+type tableRow struct {
+	cells []Cell
 }
 
-// NewTable FIXMEDOC
-func NewTable() *Table {
+// New creates an empty table
+func New() *Table {
 	return &Table{
-		rows: []*TableRow{},
+		rows: []*tableRow{},
 	}
 }
 
-// TableColumnWidthMode FIXMEDOC
-type TableColumnWidthMode int
-
-const (
-	// Minimum FIXMEDOC
-	Minimum TableColumnWidthMode = iota
-	// Average FIXMEDOC
-	Average
-)
-
 // SetColumnWidthMode FIXMEDOC
-func (t *Table) SetColumnWidthMode(x int, mode TableColumnWidthMode) {
+func (t *Table) SetColumnWidthMode(x int, mode ColumnWidthMode) {
 	for len(t.columnsWidthMode) <= x {
 		t.columnsWidthMode = append(t.columnsWidthMode, Minimum)
 	}
 	t.columnsWidthMode[x] = mode
 }
 
-func (t *Table) makeTableRow(columns ...interface{}) *TableRow {
-	columnsCount := len(columns)
-	if t.columnsCount < columnsCount {
-		t.columnsCount = columnsCount
-	}
-	cells := make([]TextBox, columnsCount)
-	for i, col := range columns {
-		switch text := col.(type) {
-		case TextBox:
-			cells[i] = text
-		case string:
-			cells[i] = sprintf("%s", text)
-		case fmt.Stringer:
-			cells[i] = sprintf("%s", text.String())
-		default:
-			panic(fmt.Sprintf("invalid column argument type: %t", col))
-		}
-	}
-	return &TableRow{cells: cells}
-}
-
 // SetHeader FIXMEDOC
 func (t *Table) SetHeader(columns ...interface{}) {
 	row := t.makeTableRow(columns...)
 	if t.hasHeader {
 		t.rows[0] = row
 	} else {
-		t.rows = append([]*TableRow{row}, t.rows...)
+		t.rows = append([]*tableRow{row}, t.rows...)
 		t.hasHeader = true
 	}
 }
@@ -160,3 +136,40 @@ func (t *Table) Render() string {
 	}
 	return res
 }
+
+func makeCell(format string, args ...interface{}) *Cell {
+	cleanArgs := make([]interface{}, len(args))
+	for i, arg := range args {
+		if text, ok := arg.(*Cell); ok {
+			cleanArgs[i], args[i] = text.clean, text.raw
+		} else {
+			cleanArgs[i] = args[i]
+		}
+	}
+
+	return &Cell{
+		clean: fmt.Sprintf(format, cleanArgs...),
+		raw:   fmt.Sprintf(format, args...),
+	}
+}
+
+func (t *Table) makeTableRow(columns ...interface{}) *tableRow {
+	columnsCount := len(columns)
+	if t.columnsCount < columnsCount {
+		t.columnsCount = columnsCount
+	}
+	cells := make([]Cell, columnsCount)
+	for i, col := range columns {
+		switch elem := col.(type) {
+		case *Cell:
+			cells[i] = *elem
+		case string:
+			cells[i] = *makeCell("%s", elem)
+		case fmt.Stringer:
+			cells[i] = *makeCell("%s", elem.String())
+		default:
+			panic(fmt.Sprintf("invalid column argument type: %t", col))
+		}
+	}
+	return &tableRow{cells: cells}
+}
diff --git a/test/test_board.py b/test/test_board.py
index 66f3b198f5c..6249dc4956a 100644
--- a/test/test_board.py
+++ b/test/test_board.py
@@ -25,7 +25,7 @@ def test_core_list(run_command):
     result = run_command("board list --format json")
     assert result.ok
     # check is a valid json and contains a list of ports
-    ports = json.loads(result.stdout).get("ports")
+    ports = json.loads(result.stdout)
     assert isinstance(ports, list)
     for port in ports:
         assert "protocol" in port
diff --git a/test/test_lib.py b/test/test_lib.py
index df8d94a8726..64446ece6c4 100644
--- a/test/test_lib.py
+++ b/test/test_lib.py
@@ -12,7 +12,6 @@
 # otherwise use the software for commercial activities involving the Arduino
 # software without disclosing the source code of your own applications. To purchase
 # a commercial license, send an email to license@arduino.cc.
-import pytest
 import simplejson as json
 
 
@@ -40,7 +39,7 @@ def test_list(run_command):
     assert "" == result.stderr
     lines = result.stdout.strip().splitlines()
     assert 2 == len(lines)
-    toks = lines[1].split("\t")
+    toks = [t.strip() for t in lines[1].split()]
     # be sure line contain the current version AND the available version
     assert "" != toks[1]
     assert "" != toks[2]
@@ -79,22 +78,22 @@ def test_remove(run_command):
     assert result.ok
 
 
-@pytest.mark.slow
 def test_search(run_command):
-    result = run_command("lib search")
+    assert run_command("lib update-index")
+
+    result = run_command("lib search --names")
     assert result.ok
     out_lines = result.stdout.splitlines()
     # Create an array with just the name of the vars
     libs = []
     for line in out_lines:
-        if line.startswith("Name: "):
-            start = line.find('"') + 1
-            libs.append(line[start:-1])
+        start = line.find('"') + 1
+        libs.append(line[start:-1])
 
     expected = {"WiFi101", "WiFi101OTA", "Firebase Arduino based on WiFi101"}
     assert expected == {lib for lib in libs if "WiFi101" in lib}
 
-    result = run_command("lib search --format json")
+    result = run_command("lib search --names --format json")
     assert result.ok
     libs_json = json.loads(result.stdout)
     assert len(libs) == len(libs_json.get("libraries"))