JSON Viewer

Port of Firefox's JSON Viewer

JSON Viewer: A Chrome Extension for Displaying JSON Files

'JSON Viewer' is a Chrome extension that enhances your JSON file viewing experience. Modelled after Firefox's version, it takes raw JSON files opened in the browser and turns them into syntax-highlighted, easy-to-read, and interactive displays. It collapses arrays and objects for clearer visibility and allows for exploration through expandable '+' icons. The source code can be retrieved from its website on GitHub.
Install from Chrome Web Store

Extension stats

Manifest V3
Users: 30,000+
Version: 2.2.0 (Last updated: 2024-03-26)
Creation date: 2018-05-27
Permissions:
  • storage
Size: 143.36K
Full description: See detailed description

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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
  • Easy to use JSON debugging UI
  • Similar to Firefox's JSON viewer
  • Light and dark themes available
  • Allows for expanding/collapsing JSON elements
  • Supports features like search, save, and copy
Cons
  • Occasional issues after Chrome updates
  • Some functions degraded or missing
  • Performance issues reported (e.g., slowness)
  • No customizable settings available
Most mentioned
  • Works great for viewing JSON
  • Best JSON viewer for Chrome
  • Comparison to Firefox's JSON viewer
  • Issues after recent Chrome updates
User reviews
Works beautifully
by Prab Singh, 2025-03-04

Does not work anymore for me as well.
by Justin Jeffery, 2024-03-22

Suddenly degraded. Only "pretty print" function is shown in UI, but others are not.
by Kenta Takahashi, 2024-03-21
View all user reviews

Extension safety

Risk impact

JSON Viewer requires very minimum permissions.

Risk impact analysis details
  • High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
  • Low ******* ****** ** *** ********* ********
Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of JSON Viewer. 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.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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