JSON Formatter chrome extension

Version: 0.7.1
JSON Formatter
Makes JSON easy to read. Open source.
4.58 Based on 1,768 user rates

What is JSON Formatter?

JSON Formatter is a url opener extension for chrome. also, it is github extension. it's a free extension , it has 2,000,000+ active users since released its first version, it earns an average rating of 4.58 from 1,768 rated user, last update is 338 days ago.

What’s new in version 0.7.1?

                The original JSON Formatter, now with optional dark mode ?

Auto-formats JSON when you load it in a browser tab.


- Fast, even on very long JSON pages
- Dark mode
- Syntax highlighting
- Collapsible trees, with indent guides
- Clickable URLs
- Negligible performance impact on non-JSON pages (less than 1 millisecond)
- Works on any valid JSON page – URL doesn't matter
- Buttons for toggling between raw and parsed JSON

Note: this extension might clash with other browser extensions that modify the DOM before it runs. If it doesn't seem to be working, try disabling other extensions. If it clashes with an extension you need, open an issue and I'll try to find a solution.

SOME EXAMPLE JSON PAGES to try it out on:

Hold down control (or cmd on Mac) while collapsing a tree - collapses all siblings too.

No tracking, no advertising, and nothing else nefarious.




How to install JSON Formatter?

You could download the latest version crx file or older version files and install it.

Preview of JSON Formatter

Technical Features:

  • Latest Version: 0.7.1
  • Requirements: Windows Chrome, Mac Chrome
  • License: Free
  • Latest update: Sunday, January 1st, 2023
  • Author: Callum Locke

JSON Formatter Available languages:



Reviews of json formatter:

Durganshi Singh March 18th, 2023
Durganshi Singh

A very light weight and handy tool for developers. I want to give a suggestion. All data type display in same color other than string. If it is possible we can customize colors for specific data types like for numeric field, bool type and null values. It will be very useful for developers.

Justin C March 12th, 2023
Justin C

It's great, but does not always parse. For example this link: https://www.amazon.com/ap/captcha?appAction=SIGNIN_PWD_COLLECT&captchaObfuscationLevel=ape:c3RhdGlj&captchaType=image&marketPlaceId=ATVPDKIKX0DER&_=1678611210799

Shawon khan February 28th, 2023
Shawon khan

its taking so much time to load a big json data.

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