JSON Formatter

Makes JSON easy to read. Open source.

What is JSON Formatter?

JSON Formatter is an open-source Chrome extension that makes JSON and JSONP easy to read. It comes with several features including syntax highlighting with multiple themes, collapsible trees with indent guides and line numbers. It also offers clickable URLs and allows you to toggle between raw and parsed JSON. The extension works on any valid JSON page, and even on local files once enabled from chrome://extensions. Furthermore, you can inspect the JSON simply by typing 'json' in the console. The source code can be found at github.com/nikrolls/json-formatter.

Download

Extension stats

By: Nik Rolls

View on Chrome Web Store

Users: 30,000+

Rating: 4.37 (65)

Version: 0.10.0 (Last updated: 2017-05-08)

Creation date: 2017-05-08

Risk impact: Moderate risk impact

Risk likelihood: Low risk likelihood

Manifest version: 2

Permissions:

storage
*://*/*
<all_urls>

Size: 41.88K

Ranking

# 4741 ▲ 1

Other rankings

#6545 in Developer Tools ▼ 15 #19 in json keyword 68 ▼ 1

Other platforms

Not available on Firefox

JSON Formatter (v0.1)

5.00

(2) 3,636+

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Extension summary

Analyze keywords

Makes JSON easy to read. Open source. A fork of the original (no-longer updated) extension by Callum Locke.

FEATURES • JSON & JSONP support • Syntax highlighting with 36 light and dark themes • Collapsible trees, with indent guides • Line numbers • Clickable URLs • Toggle between raw and parsed JSON • Works on any valid JSON page – URL doesn't matter • Works on local files too (if you enable this in chrome://extensions) • You can inspect the JSON by typing "json" in the console

(Note: this extension might clash with other JSON highlighters/beautifiers, like ‘JSONView’, ‘Pretty JSON’ or ‘Sight’ – disable those before trying this.)

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.

Pros

Offers themes in both light and dark modes
Can show both formatted and raw data on one page
Meets the specific needs of users for JSON formatting
Users appreciate its functionality when it works

Cons

Not functioning with the most recent version of Chrome
Issues with displaying local JSON files properly
Some users experienced problems with line numbering
Limited functionality compared to other JSON extensions
Frequent reports of the extension not working at all

Most mentioned

Not working with the most recent version of Chrome
Local files not opening correctly
Desire for more content-type options
Positive feedback about themes
Need for better automatic fixing of JSON data

Recent reviews

Actualmente 26/03/2024 no funciona la extension, la podrian arreglar?, muchas gracias!

Juegos Retro, 2024-03-26

FYI for anyone saying this no longer works: there is a NEW version of this extension by callumlocke.com. Just do a search for the same name, "JSON formatter" and it should come up as one of the first results.