diff --git a/.gitignore b/.gitignore
index 82608cd..58b8639 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@ y.output
 
 _vendor-*
 vendor
+
+.vscode/
diff --git a/completed.go b/completed.go
index 4b426e7..584dbe2 100644
--- a/completed.go
+++ b/completed.go
@@ -2,12 +2,20 @@ package main
 
 import (
 	"context"
+	"encoding/json"
 
-	"github.com/sachaos/todoist/lib"
+	todoist "github.com/sachaos/todoist/lib"
 
 	"github.com/urfave/cli"
 )
 
+type CompletedJSON struct {
+	ID            string `json:"id"`
+	CompletedDate string `json:"completed_date"`
+	Project       string `json:"project"`
+	Content       string `json:"content"`
+}
+
 func CompletedList(c *cli.Context) error {
 	client := GetClient(c)
 
@@ -25,12 +33,15 @@ func CompletedList(c *cli.Context) error {
 		return err
 	}
 
+	isJson := c.GlobalBool("json")
+
 	defer writer.Flush()
 
-	if c.GlobalBool("header") {
+	if !isJson && c.GlobalBool("header") {
 		writer.Write([]string{"ID", "CompletedDate", "Project", "Content"})
 	}
 
+	var jsonObjects []CompletedJSON
 	for _, item := range completed.Items {
 		result, err := Eval(ex, item, client.Store.Projects, client.Store.Labels)
 		if err != nil {
@@ -39,12 +50,27 @@ func CompletedList(c *cli.Context) error {
 		if !result {
 			continue
 		}
-		writer.Write([]string{
-			IdFormat(item),
-			CompletedDateFormat(item.DateTime()),
-			ProjectFormat(item.ProjectID, client.Store, projectColorHash, c),
-			ContentFormat(item),
-		})
+
+		obj := CompletedJSON{
+			ID:            IdFormat(item),
+			CompletedDate: CompletedDateFormat(item.DateTime()),
+			Project:       ProjectFormat(item.ProjectID, client.Store, projectColorHash, c),
+			Content:       ContentFormat(item),
+		}
+		if isJson {
+			jsonObjects = append(jsonObjects, obj)
+		} else {
+			writer.Write([]string{obj.ID, obj.CompletedDate, obj.Project, obj.Content})
+		}
+
+	}
+
+	if isJson {
+		jsonData, err := json.Marshal(jsonObjects)
+		if err != nil {
+			return CommandFailed
+		}
+		writer.Write([]string{string(jsonData)})
 	}
 
 	return nil
diff --git a/labels.go b/labels.go
index 4c713c8..bb12727 100644
--- a/labels.go
+++ b/labels.go
@@ -1,26 +1,50 @@
 package main
 
 import (
+	"encoding/json"
 	"os"
 	"text/tabwriter"
 
 	"github.com/urfave/cli"
 )
 
+type LabelJSON struct {
+	ID   string `json:"id"`
+	Name string `json:"name"`
+}
+
 func Labels(c *cli.Context) error {
 	client := GetClient(c)
 
 	w := new(tabwriter.Writer)
 	w.Init(os.Stdout, 0, 4, 1, ' ', 0)
 
-	defer writer.Flush()
+	isJson := c.GlobalBool("json")
 
-	if c.GlobalBool("header") {
+	defer writer.Flush()
+	if !isJson && c.GlobalBool("header") {
 		writer.Write([]string{"ID", "Name"})
 	}
 
+	var jsonObjects []LabelJSON
 	for _, label := range client.Store.Labels {
-		writer.Write([]string{IdFormat(label), "@" + label.Name})
+		obj := LabelJSON{
+			ID:   IdFormat(label),
+			Name: "@" + label.Name,
+		}
+		if isJson {
+			jsonObjects = append(jsonObjects, obj)
+		} else {
+			writer.Write([]string{obj.ID, obj.Name})
+		}
+	}
+
+	if isJson {
+		jsonData, err := json.Marshal(jsonObjects)
+		if err != nil {
+			return CommandFailed
+		}
+		writer.Write([]string{string(jsonData)})
 	}
 
 	return nil
diff --git a/list.go b/list.go
index d1771b9..cb3a997 100644
--- a/list.go
+++ b/list.go
@@ -1,8 +1,10 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"os"
+	"sort"
 
 	"github.com/acarl005/stripansi"
 	todoist "github.com/sachaos/todoist/lib"
@@ -21,18 +23,13 @@ func traverseItems(item *todoist.Item, f func(item *todoist.Item, depth int), de
 	}
 }
 
-func sortItems(itemListPtr *[][]string, byIndex int) {
-	itemList := *itemListPtr
-	length := len(itemList)
-	for i := 0; i < length-1; i++ {
-		for j := 0; j < length-1-i; j++ {
-			if stripansi.Strip(itemList[j][byIndex]) > stripansi.Strip(itemList[j+1][byIndex]) {
-				tmp := itemList[j]
-				itemList[j] = itemList[j+1]
-				itemList[j+1] = tmp
-			}
-		}
-	}
+type TaskJSON struct {
+	ID       string `json:"id"`
+	Priority string `json:"priority"`
+	DueDate  string `json:"due_date"`
+	Project  string `json:"project"`
+	Labels   string `json:"labels"`
+	Content  string `json:"content"`
 }
 
 func List(c *cli.Context) error {
@@ -47,7 +44,6 @@ func List(c *cli.Context) error {
 	projectColorHash := GenerateColorHash(projectIds, colorList)
 	ex := Filter(c.String("filter"))
 
-	itemList := [][]string{}
 	rootItem := client.Store.RootItem
 
 	if rootItem == nil {
@@ -55,6 +51,9 @@ func List(c *cli.Context) error {
 		return nil
 	}
 
+	isJson := c.GlobalBool("json")
+
+	var jsonObjects []TaskJSON
 	traverseItems(rootItem, func(item *todoist.Item, depth int) {
 		r, err := Eval(ex, item, client.Store.Projects, client.Store.Labels)
 		if err != nil {
@@ -63,31 +62,42 @@ func List(c *cli.Context) error {
 		if !r || item.Checked == 1 {
 			return
 		}
-		itemList = append(itemList, []string{
-			IdFormat(item),
-			PriorityFormat(item.Priority),
-			DueDateFormat(item.DateTime(), item.AllDay),
-			ProjectFormat(item.ProjectID, client.Store, projectColorHash, c) +
+		obj := TaskJSON{
+			ID:       IdFormat(item),
+			Priority: PriorityFormat(item.Priority),
+			DueDate:  DueDateFormat(item.DateTime(), item.AllDay),
+			Project: ProjectFormat(item.ProjectID, client.Store, projectColorHash, c) +
 				SectionFormat(item.SectionID, client.Store, c),
-			item.LabelsString(client.Store),
-			ContentPrefix(client.Store, item, depth, c) + ContentFormat(item),
-		})
+			Labels:  item.LabelsString(client.Store),
+			Content: ContentPrefix(client.Store, item, depth, c) + ContentFormat(item),
+		}
+		jsonObjects = append(jsonObjects, obj)
 	}, 0)
 
-	if c.Bool("priority") == true {
+	if c.Bool("priority") {
 		// sort output by priority
 		// and no need to use "else block" as items returned by API are already sorted by task id
-		sortItems(&itemList, 1)
+		sort.Slice(jsonObjects, func(i, j int) bool {
+			return stripansi.Strip(jsonObjects[i].Priority) < stripansi.Strip(jsonObjects[j].Priority)
+		})
 	}
 
 	defer writer.Flush()
 
-	if c.GlobalBool("header") {
-		writer.Write([]string{"ID", "Priority", "DueDate", "Project", "Labels", "Content"})
-	}
+	if isJson {
+		jsonData, err := json.Marshal(jsonObjects)
+		if err != nil {
+			return CommandFailed
+		}
+		writer.Write([]string{string(jsonData)})
+	} else {
+		if c.GlobalBool("header") {
+			writer.Write([]string{"ID", "Priority", "DueDate", "Project", "Labels", "Content"})
+		}
 
-	for _, strings := range itemList {
-		writer.Write(strings)
+		for _, obj := range jsonObjects {
+			writer.Write([]string{obj.ID, obj.Priority, obj.DueDate, obj.Project, obj.Labels, obj.Content})
+		}
 	}
 
 	return nil
diff --git a/main.go b/main.go
index f183320..9691ae0 100644
--- a/main.go
+++ b/main.go
@@ -13,7 +13,7 @@ import (
 
 	"github.com/fatih/color"
 	"github.com/rkoesters/xdg/basedir"
-	"github.com/sachaos/todoist/lib"
+	todoist "github.com/sachaos/todoist/lib"
 	"github.com/spf13/viper"
 	"github.com/urfave/cli"
 )
@@ -101,6 +101,10 @@ func main() {
 			Name:  "csv",
 			Usage: "output in CSV format",
 		},
+		cli.BoolFlag{
+			Name:  "json, j",
+			Usage: "output in JSON format",
+		},
 		cli.BoolFlag{
 			Name:  "debug",
 			Usage: "output logs",
diff --git a/projects.go b/projects.go
index 94eb934..f54ba00 100644
--- a/projects.go
+++ b/projects.go
@@ -1,15 +1,22 @@
 package main
 
 import (
-	"github.com/sachaos/todoist/lib"
+	"encoding/json"
+
+	todoist "github.com/sachaos/todoist/lib"
 	"github.com/urfave/cli"
 )
 
+type ProjectJSON struct {
+	ID   string `json:"id"`
+	Name string `json:"name"`
+}
+
 func traverseProjects(pjt *todoist.Project, f func(pjt *todoist.Project, depth int), depth int) {
 	f(pjt, depth)
 
 	if pjt.ChildProject != nil {
-		traverseProjects(pjt.ChildProject, f, depth + 1)
+		traverseProjects(pjt.ChildProject, f, depth+1)
 	}
 
 	if pjt.BrotherProject != nil {
@@ -27,21 +34,32 @@ func Projects(c *cli.Context) error {
 	}
 	projectColorHash := GenerateColorHash(projectIds, colorList)
 
-	itemList := [][]string{}
 	project := client.Store.RootProject
 
+	var jsonObjects []ProjectJSON
 	traverseProjects(project, func(pjt *todoist.Project, depth int) {
-		itemList = append(itemList, []string{IdFormat(pjt), ProjectFormat(pjt.ID, client.Store, projectColorHash, c)})
+		jsonObjects = append(jsonObjects, ProjectJSON{
+			ID:   IdFormat(pjt),
+			Name: ProjectFormat(pjt.ID, client.Store, projectColorHash, c),
+		})
 	}, 0)
 
 	defer writer.Flush()
 
-	if c.GlobalBool("header") {
-		writer.Write([]string{"ID", "Name"})
-	}
+	if c.GlobalBool("json") {
+		jsonData, err := json.Marshal(jsonObjects)
+		if err != nil {
+			return CommandFailed
+		}
+		writer.Write([]string{string(jsonData)})
+	} else {
+		if c.GlobalBool("header") {
+			writer.Write([]string{"ID", "Name"})
+		}
 
-	for _, strings := range itemList {
-		writer.Write(strings)
+		for _, obj := range jsonObjects {
+			writer.Write([]string{obj.ID, obj.Name})
+		}
 	}
 
 	return nil
diff --git a/todoist_functions_fzf_bash.sh b/todoist_functions_fzf_bash.sh
index b804b4f..ee59a39 100644
--- a/todoist_functions_fzf_bash.sh
+++ b/todoist_functions_fzf_bash.sh
@@ -70,7 +70,7 @@ _todoist() {
     __todoist_debug "${FUNCNAME[0]}(): cmd=$cmd"
 
     # Global options present in all commands
-    opts='--header --color --csv --debug --namespace --indent'\
+    opts='--header --color --csv --debug --namespace --indent --json -j'\
 ' --project-namespace --help -h --version -v '
 
     case "$cmd" in