JSON Formatter icon

JSON Formatter

FeaturedEstablished publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Formats JSON automatically! Open Source, Available with 60+ Themes, Syntax Highlighting, automatically linkifies links and more.

Users
40K
0 in 30 days
Rating
4.4 / 5
unchanged in 30 days
Ratings
44
0 in 30 days
Store rank
#4,073
#3,542 among extensions
Version
v2.2.0
updated 31 May 2026

Users

monthly, 3 years
6,00028K50KAug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 40,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
62849Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 44 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About JSON Formatter

JSON Formatter automatically formats and prettifies JSON in Chrome. It comes with support for syntax highlighting and over 60 themes. It also makes links clickable automatically and has multiple modes to view JSON, including Parsed Mode, Formatted Raw Mode, and Raw Mode. You can toggle between modes using shortcut keys: Parsed Mode: P key Formatted Raw Mode: Shift + R key Raw Mode: R key Collapse All: [ Key Expand All: ] Key Toggle Dark Mode: D key Toggle Toolbar: T key Features: ● Over 60 themes for both light and dark mode ● Syntax highlighting ● Works offline ● No tracking or analytics ● Word wrapping and sorting order to stay organized ● Works with any JSON webpage ● Supports excluding domains from formatting ● Makes links clickable ● Formats JSON automatically ● Raw, Formatted Raw, and Parsed Mode ● Remembers theme preferences ● Shortcut keys for ease of use ● Collapsible toolbar Note: By default, the extension theme is "System Default." It will change according to your browser's theme. If you want it to be the theme of your choice, you have to set it from the "Extension Settings" or "Extension Options." To change the default formatting option and other settings, set your desired option in the extension settings. To make JSON Formatter work properly on all kinds of sites, in the extension permissions, change "Allow this extension to read and change all your data on websites you visit" from "On Click" to "On all sites," if not already set. To use JSON Formatter in local files, enable "Allow access to file URLs" in the extension settings. To use JSON Formatter in Incognito mode, enable "Allow in Incognito" in the extension settings. Some URLs to test on: - https://api.github.com/users - https://microsoftedge.github.io/Demos/json-dummy-data/64KB.json - https://raw.githubusercontent.com/mxstbr/markdown-test-file/refs/heads/master/TEST.md - https://raw.githubusercontent.com/mdn/learning-area/refs/heads/main/javascript/introduction-to-js-1/assessment-finished/main.js Source code: https://github.com/arnav-kr/json-formatter/ Bug reports and suggestions: https://github.com/arnav-kr/json-formatter/issues Changelog: https://github.com/arnav-kr/json-formatter/blob/main/CHANGELOG.md

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months0+0.0%−5+0.04
1 year0+0.0%+9+0.01

Chrome Web Store search rankings

Where JSON Formatter appears when people search the store, with the 30 day change
Search phrasePosition30 days
json#50
format#31+14
changelog#45+11

Version history

23 versions recorded
v2.2.031 May 2026
Version 2.1.19 Beta29 Apr 2026
2.1.166 Mar 2026
Version 2.1.14 Beta2 Mar 2026
Version 2.1.12 Beta8 Feb 2026
Version 2.1.11 Beta1 Dec 2025
Version 2.1.10 Beta27 Jan 2025
Version 2.1.9 Beta25 Dec 2024

Details

Category
Developer Tools
First seen
8 Sep 2021
Size
213 KB
Languages
en
Pricing
Free
Support
github.com
Extension ID
gpmodmeblccallcadopbcoeoejepgpnb

Permissions and risk

Minimal riskimpact 2, likelihood 0
Permissions
storageunlimitedStorage
Site access
*://*/*<all_urls>
Can read and change data on every website you visit.

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