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Preview of JSON Viewer Pro By PatilWeb

JSON Viewer Pro By PatilWeb by PatilWeb

✨ A powerful JSON viewer and formatter for Firefox built with TypeScript A powerful and elegant Chrome extension for viewing, formatting, and analyzing JSON data on web pages.

Available on Firefox for Android™Available on Firefox for Android™
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About this extension
A powerful JSON viewer and formatter for Chrome built with TypeScript

A powerful and elegant Chrome extension for viewing, formatting, and analyzing JSON data on web pages.

Validates and makes JSON documents easy to read.

✨ Features
🎨 Beautiful JSON Formatting: Syntax highlighting with collapsible objects and arrays
🔍 Auto-Detection: Automatically detects JSON content on web pages
🌙 Dark/Light Theme: Toggle between light and dark themes
📋 Copy to Clipboard: Easy copying of formatted JSON data
📊 JSON Analysis: Shows object count, array count, and file size
⚡ Real-time Validation: Instant JSON validation and error reporting
🎯 Context Menu Integration: Right-click options for JSON operations
🔧 Customizable Settings: Auto-format, syntax highlighting, and collapsible options
⚡ Works on any valid JSON page even on local files too
🔧 Smart JSON Detection: Automatically detects JSON content on web pages
📊 JSON Analysis: Shows object count, array count, and file size
⚡ Real-time Validation: Instant JSON validation and error reporting
🎯 Context Menu Integration: Right-click options for JSON operations
📝 Internal JSON Viewer: Dedicated page for pasting and formatting raw JSON data
📁 File Upload Support: Drag & drop or browse for JSON files
🎯 Smart UI: JSON-specific controls appear only when JSON is detected on the page
🔄 Expand/Collapse All: Toggle visibility of all JSON nodes at once
⌨️ Keyboard Shortcuts: Quick actions with keyboard combinations

Settings Available
✅ Auto-format JSON: Automatically format detected JSON
🎨 Syntax highlighting: Enable/disable color coding
📁 Collapsible objects: Make objects and arrays collapsible
🌙 Dark theme: Switch between light and dark themes

Note:
This extension might have conflict with other JSON highlighters/beautifiers, like 'JSON Formatter', 'JSONView', 'Pretty JSON' and so on – Please, disable those before trying this for better experience.

Try it out on these URLs:
https://jsonplaceholder.typicode.com/todos/1 1 todo
https://jsonplaceholder.typicode.com/posts 100 posts
https://jsonplaceholder.typicode.com/comments 500 comments
https://jsonplaceholder.typicode.com/albums 100 albums
https://jsonplaceholder.typicode.com/photos 5000 photos
https://jsonplaceholder.typicode.com/todos 200 todos
https://jsonplaceholder.typicode.com/users 10 users
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Required permissions:

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  • Access your data for all web sites
More information
Version
2.0.1
Size
82.77 kB
Last updated
4 days ago (13 Sep 2025)
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Licence
Mozilla Public Licence 2.0
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