JSON Formatter

Makes JSON easy to read. Open source.

JSON Formatter: Chrome Extension for Easy JSON Readability

"JSON Formatter" is a user-friendly Chrome extension designed to simplify the reading of JSON by automatically formatting it when loaded in a browser. It offers convenient features such as syntax highlighting, collapsible trees with indent guides, clickable URLs, and a dark mode. Despite its feature richness, it has negligible performance impact on non-JSON pages. Moreover, it respects user privacy with no tracking or advertisements.
Download
Install from Chrome Web Store

Extension stats

Users: 2,000,000+
Rating: 4.59
(1,859)
Version: 0.7.3 (Last updated: 2024-03-28)
Creation date: 2020-04-20
Risk impact: Moderate risk impact
Risk likelihood:
Very low risk likelihood
Manifest version: 3
Permissions:
  • storage
Host permissions:
  • *://*/*
  • <all_urls>
Size: 20.34K
URLs: Website

Ranking

# 265 ▲ 10
Other rankings
#3 in Developer Tools #2 in json keyword 69 #13 in format keyword 12 #67 in source code keyword 28 ▲ 2 #274 in features keyword 12 ▲

Other platforms

JSON Formatter (v2.7)
4.18 (47) 14,443+
Not available on Firefox
JSON Formatter (v0.1)
5.00 (2) 3,607+
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Extension summary

Analyze keywords

The original JSON Formatter, now with optional dark mode 🌚

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

FEATURES

  • 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
See more

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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
  • Works perfectly and beautifully formats JSON data
  • It's simple, lightweight, and efficient
  • Indispensable tool for debugging and readability
  • No need for configuration upon installation
Cons
  • Conflicts with Chrome's built-in pretty print
  • Currently grayed out and not functioning for some users
Most mentioned
  • Ease of use and effectiveness in formatting JSON
  • Performance issues or conflicts with other tools
  • Desire for additional features such as line numbering
User reviews
It works very well. Its amazing
by Sahil Atahar, 2024-12-17
very nice its sure help understanding certain issues i do love the options
by Lynia Uth, 2024-11-30
by Masaki Kobayashi, 2024-11-29
View all user reviews

Extension safety

Risk impact

JSON Formatter requires a few sensitive permissions. Exercise caution before installing.

Risk likelihood

JSON Formatter has earned a good reputation and can be trusted.

Upgrade to see risk analysis details

Promo images

JSON Formatter small promo image
Small promo image

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