JSON Formatter

Makes JSON easy to read. Open source.

JSON Formatter - Chrome Extension for JSON View

JSON Formatter is a Chrome extension based on the open-source project at https://github.com/callumlocke/json-formatter. It serves the primary function of transforming complex JSON data into a more readable format, greatly aiding in debugging and data analysis. The extension also provides an option to force return of content-type as application/json, offers font customization, addresses the leading semicolon bug in JSONP, and supports a dark mode for a user-friendly interface.

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Extension stats

By: https://www.cafeboy.org

Users: 10,000+

Rating: 4.45

(22)

Version: 0.7.0 (Last updated: 2025-03-07)

Creation date: 2020-05-10

Permissions:

storage
declarativeNetRequest

Host permissions:

<all_urls>

Size: 28.99K

Email: 47*****@qq.com

URLs: Website ,Privacy policy

Full description: See detailed description

Ranking

# 8,826 ▲ 45

Other rankings

#740 in Developer Tools ▼ 2 #31 in json keyword 14 ▲ 12

Other platforms

Not available on Android

Not available on Firefox

Not available on Edge

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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

Fast and simple to use
Useful for learning about JSON and server requests
Works effectively for most JSON formats

Cons

Does not handle boolean type elements properly
Incompatible with dark mode in Chrome v100+, causing pages to turn completely black
Not working for some users

Most mentioned

In the new Chrome dark mode (v100+), the whole page turns black
Not working
Works like a charm

User reviews

In the new Chrome dark mode (v100+), the whole page turns black, not a great experience

Vincent, 2022-05-11

♥

Ahmed Hafez, 2021-02-27

Not working

Grigore, 2021-01-24

View all user reviews

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 was recently updated in the past month. New updates may not be stable or safe.
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