JSON Formatter

Name: JSON Formatter
Rating: 4.48 (23 reviews)
Author: Jumkey

Makes JSON easy to read. Open source.

As of May 2026, JSON Formatter has 9,000 users and a 4.48/5 rating from 23 reviews in the Developer Tools category.

Jumkey Developer Tools★ Featured

Chrome Web Store ↗.crx

Users0%

9.0K

9,000

Rating0%

4.48

23 reviews

Reviews0%

Version

0.7.0

Manifest V3

History

1 snapshots

Tracking since Apr 30, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 30, 2026	9.0K	4.48	23	0.7.0
Now	9.0K	4.48	23	0.7.0

Permissions & access

Permissions: storagedeclarativeNetRequest
Host access: <all_urls>

Screenshots

About

based on https://github.com/callumlocke/json-formatter
add force to return application/json content-type action;
change the font;
fixed JSONP leading semicolon bug;
dark mode.

Technical

Version: 0.7.0
Manifest: V3
Size: 28.31KiB
Min Chrome: 92
Languages: 2
Featured: Yes

Metadata

ID: cfaihfocdnniaholfnjcemnfhcjchohb
Developer ID: uc0c5d907a98829ecf645fa9105d78c1d
Developer Email: [email protected]
Created: Sep 26, 2015
Last Updated (Store): Mar 7, 2025
Last Scraped: May 29, 2026
Website: https://www.cafeboy.org/
Support URL: https://github.com/jumkey/json-formatter/issues
Privacy Policy: https://www.cafeboy.org/privacy.html

Similar extensions

Alternatives to JSON Formatter, ranked by description similarity.

JSON Formatter

Makes JSON easy to read. Open source.

145

JSON Formatter Pro 2026

Ultra-modern JSON formatter with blazing fast viewer, syntax highlighting, breadcrumb navigation, and toggle view modes.

JSON Formatter

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

40.0K

★ 4.4

JSON Formtr

Automatically formats raw JSON responses.

Auto JSON Formatter

Automatically formats JSON API responses

JSON Beautifier

Format, highlight, and inspect JSON with syntax coloring, collapsible tree view, minify toggle, copy, and light/dark theme.

JSON Formatter - Simple & Clean

Automatically formats JSON responses in the browser with themes, collapsible nodes, and other helpful features.

★ 5.0

JSON Formatter

The most beautiful and customizable JSON / JSONP highlighter, makes JSON / JSONP easy to read. Open source.

Data sourced from the Chrome Web Store · last verified May 29, 2026.