JSON Formatter

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

JSON Formatter Chrome Extension

JSON Formatter is a Chrome extension that automatically formats and prettifies JSON, supports syntax highlighting and over 60 themes, and makes links clickable. It has multiple viewing modes and shortcut keys for ease of use.

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Extension stats

By: https://json-formatter.js.org

Users: 40,000+

Rating: 4.38

(34)

0.02

Version: Version 2.1.10 Beta (Last updated: 2025-01-27)

Version code: 2.1.10

Creation date: 2021-09-08

Permissions:

storage
unlimitedStorage

Host permissions:

*://*/*
<all_urls>

Size: 105.47K

Email: ar*****@outlook.com

URLs: Website

Full description: See detailed description

Ranking

# 4,286 ▲ 62

Other rankings

#78 in Developer Tools

#18 in json keyword 69 ▼ 1

#41 in format keyword 18 ▼ 3

#117 in changelog keyword 18 ▼ 3

#145 in works offline keyword 34 ▼ 12

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Other platforms

Not available on Android

JSON Formatter (v2.0.3.0)

3,152+ 5.00

(5)

JSON Formatter (vVersion 2.1.10 Beta)

8,793+ 4.60

(7)

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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

Great formatting of JSON data
User-friendly with themes and keyboard shortcuts
Excellent for API work and recommended by multiple users
Multiple format types available including sorting options
High performance compared to other JSON formatter extensions

Cons

Takes over the right-click menu, which some users find inconvenient
Toolbar appears every time the page loads, which can be distracting
Some functionality issues with local JSON files on certain systems
High CPU usage reported by some users
Configuration settings like theme cannot be saved permanently

Most mentioned

Formatting capabilities
Performance compared to other extensions
Issues with the toolbar display on page load
Inability to handle local JSON files
Request for customizable settings and themes

User reviews

It formats JSON nicely; however, it takes over the right-click menu. It also cannot handle JSON values that are URLs in the "Parsed" view. For example, the value "https://www.example.com/" becomes "www.example.com" target="_blank">https://www.example.com/"

Jonathan Cross, 2025-01-22

this is the best.

Dogukan Ozen, 2024-09-13

a million thumbs up

Philip Vo, 2024-07-09

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Extension safety

Risk impact

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

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of JSON Formatter. Use it at your own risk.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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