JSON Lite Firefox

JSON Lite

Fast JSON viewer - highlights, shows items count/size, handles large files

Features & Capabilities

JSON Lite is a fast and efficient JSON viewer designed for developers and users who need a reliable tool for inspecting JSON and JSONP data. It offers syntax highlighting, collapsible arrays and objects, and convenient features like counting items and properties within JSON collections.

It supports very large JSON files (10MB+) and attempts to display even invalid JSON formats, making it versatile for various use cases. Additional functionalities include quick collapsing of nested structures using keyboard modifiers, preserving original numeric keys order without rounding large numbers, and saving the JSON document in its original format. JSON Lite also enhances your workflow by allowing selection and formatting directly from any page or clipboard content.

User Growth & Download Statistics

Manifest V2 Add-on Developer Tools Programming
By:
Lauri Rooden
Daily users:
10,682 49
Rating:
4.44
(106)
Version:
21.3.0 Last updated: 2021-03-03
Version code:
5192213
Creation date:
2016-10-14
Risk:
High risk impact Low risk likelihood
Permissions:
Content scripts matches:
  • <all_urls>
Size:
27.32KB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-14
Compare stats and ranking:

Other platforms

Chrome
JSON Lite (v24.6.3)
10,000 4.75 (61)
Edge
JSON Lite (v24.6.3)
3,310 4.50 (8)

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Lauri Rooden
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/json-lite/
Website:
https://github.com/litejs/json-lite/issues

User Reviews

The reviews largely praise the add-on as functional and visually appealing, with notes like 'works well' and 'excellent extension.' Recurrent drawbacks are slow load/initialization on Android and difficulty viewing large, formatted JSON. A frequent feature request is dark mode. Some reviews are non-relevant promotional messages. Overall, positive sentiment with actionable improvements focused on performance and UI options.
Pros
  • Works well
  • Looks nice / better than screenshots
  • Excellent extension
Cons
  • Slow to load/initialize on Android
  • Cannot view large/formatted JSON fully
  • Dark mode support request (feature request)
Recent reviews
by qw*****, 2025-11-26

by Je*****, 2025-09-03

it works but it takes a lot of time to load / initialize on Android
by kh*****, 2025-06-08
View all user reviews ›

Is JSON Lite Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

JSON Lite requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

JSON Lite has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • Medium This extension has medium user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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