# JSON Lite

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

Canonical page: [https://chrome-stats.com/d/json-lite](https://chrome-stats.com/d/json-lite)

## Overview

- **ID:** `json-lite`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Lauri Rooden
- **Category:** web-development,appearance
- **Daily users:** 10,067
- **Weekly downloads:** 42
- **Rating:** 4.44 / 5 (106 ratings)
- **Version:** 21.3.0
- **Last updated:** 2021-03-03
- **First published:** 2016-10-14
- **Size:** 27 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/json-lite/)
- **Website:** [https://github.com/litejs/json-lite/issues](https://github.com/litejs/json-lite/issues)

## Description

**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.

## Rankings

- #773 — Overall
- #73 — Web Development
- #112 — Appearance
- #2 — json
- #19 — item
- #20 — handle

## Permissions and access

### Permissions

- `contextMenus`
- `storage`
- `tabs`
- `webRequest`
- `webRequestBlocking`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has medium user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

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)

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Source: [Chrome-Stats](https://chrome-stats.com/d/json-lite)