JSON Viewer Pro Expand,Editor,Auto,Drag-Drop,Output Dump 2 json By PatilWeb

View, format, edit, expand/collapse, drag & drop, and export JSON with advanced features in Chrome.

As of June 2026, JSON Viewer Pro Expand,Editor,Auto,Drag-Drop,Output Dump 2 json By PatilWeb has 25 users and a 5.00/5 rating from 2 reviews in the Developer Tools category.

Usersdown 7.4 percent7.4%
25
25
Ratingno change0%
5.00
2 reviews
Reviewsno change0%
2
Version
7.1
Manifest V3

History

5 snapshots

Tracking since Apr 18, 2026.

30.427.524.6Apr 18, 2026Jun 6, 2026
View as table
DateUsersRatingReviewsVersion
Apr 18, 2026275.0027.1
May 3, 2026255.0027.1
May 12, 2026265.0027.1
May 24, 2026275.0027.1
Jun 6, 2026305.0027.1
Now255.0027.1

Permissions & access

Permissions
activeTabstoragecontextMenusnotifications
Host access
http://*/*, https://*/*, file://*/*

Screenshots

JSON Viewer Pro Expand,Editor,Auto,Drag-Drop,Output Dump 2 json By PatilWeb screenshot 1JSON Viewer Pro Expand,Editor,Auto,Drag-Drop,Output Dump 2 json By PatilWeb screenshot 2JSON Viewer Pro Expand,Editor,Auto,Drag-Drop,Output Dump 2 json By PatilWeb screenshot 3JSON Viewer Pro Expand,Editor,Auto,Drag-Drop,Output Dump 2 json By PatilWeb screenshot 4JSON Viewer Pro Expand,Editor,Auto,Drag-Drop,Output Dump 2 json By PatilWeb screenshot 5

About

View, format, edit, expand/collapse, drag & drop, and export JSON with advanced features in Chrome and support output from 6+ programming languages, making us the only extension you need for any data format.


✨ 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

Internal JSON Viewer
Click "📝 Open JSON Viewer" in the extension popup
Opens a dedicated page for pasting and formatting raw JSON
Features:
Split-panel interface (input/output)
📁 File Upload: Click "Open File" to select JSON files from your computer
🎯 Drag & Drop: Simply drag JSON files directly into the input area
Real-time JSON validation and formatting
Live statistics (size, objects, arrays, properties)
Sample JSON loader for testing
Full expand/collapse functionality
Dark/Light theme toggle
Keyboard shortcuts: Ctrl+Enter (format), Ctrl+Shift+E (expand all)
File Support: .json and .txt files (up to 10MB)
✅ 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

 ✨ Key Features

 🚀 **Intelligent Auto-Detection**
- **Smart JSON Recognition**: Automatically detects and formats JSON content on any webpage
- **Programming Language Support**: Recognizes and converts output from popular language
- **Mixed Content Handling**: Processes multiple JSON elements on the same page individually
- **Context-Aware Processing**: Distinguishes between single JSON pages and mixed content

 🎨 **Professional Formatting**
- **Beautiful Syntax Highlighting**: Color-coded JSON with proper indentation
- **Collapsible Structures**: Expand/collapse nested objects and arrays
- **Type-Specific Styling**: Visual distinction between strings, numbers, booleans, and null values
- **Dark/Light Theme Support**: Seamless integration with your preferred theme

 ✏️ **Advanced JSON Editor**
- **Real-Time Editing**: Live JSON editor with instant validation
- **Syntax Validation**: Real-time error detection with helpful error messages
- **Auto-Formatting**: One-click JSON beautification and formatting
- **Apply Changes**: Update displayed content directly from the editor
- **Error Prevention**: Disabled save functionality for invalid JSON

 🛠️ **Developer-Friendly Tools**
- **Copy Functionality**: One-click copying of formatted JSON
- **View Original**: Switch between formatted and original content
- **Full Formatter Mode**: Open complex JSON in a dedicated viewer
- **Manual Trigger**: Force formatting when auto-detection is disabled
- **Export Options**: Save formatted JSON to files

 🔄 **Programming Language Output Conversion**

🎯 **Python Output Support**
- Converts `True`/`False`/`None` to JSON equivalents
- Handles single-quoted strings and dictionary syntax
- Supports complex nested Python structures

🎯 **JavaScript Console Output**
- Processes `Object { }` and `Array(3) [ ]` formats
- Handles `console.log` output from browsers
- Converts `undefined` to `null` appropriately

🎯 **PHP var_dump Output**
- Parses PHP array and object dumps
- Converts PHP type annotations to JSON
- Handles nested PHP structures

🎯 **Java Object Output**
- Processes HashMap and ArrayList toString formats
- Handles Java object notation like `User{id=1, name=Alice}`
- Converts Java collections to JSON arrays

🎯 **C# Object Output**
- Supports C# property syntax
- Handles List collections and anonymous objects
- Converts C# specific types to JSON

🎯 **Ruby Object Output**
- Processes Ruby hash syntax with symbols
- Handles `:key => value` notation
- Converts Ruby arrays and nested structures

 🎯 **Smart Placement & Performance**
- **Conservative Placement**: Places formatters exactly where content appears
- **No Page Disruption**: Preserves original page functionality
- **Performance Optimized**: Handles large JSON files efficiently
- **Error Resilience**: Graceful handling of malformed content
- **Memory Efficient**: Minimal resource usage

🎯 🔧 **Customization & Settings**
- **Auto-Format Toggle**: Enable/disable automatic formatting
- **Syntax Highlighting**: Toggle color coding
- **Collapse Settings**: Control default expand/collapse behavior
- **Theme Preferences**: Choose between dark and light themes
- **Manual Control**: Override auto-detection when needed

🎯 📱 **User Experience**
- **Drag & Drop Support**: Drop JSON files directly onto pages
- **File Size Limits**: Smart handling of large files (up to 10MB)
- **Loading Indicators**: Visual feedback during processing
- **Keyboard Shortcuts**: Efficient navigation and control
- **Responsive Design**: Works on all screen sizes

🎯 🌟 **Perfect For**

🎯 **Web Developers**
- API response debugging and analysis
- JSON configuration file editing
- Database query result formatting
- REST API testing and validation

🎯 **Data Analysts**
- JSON data exploration and visualization
- Data structure analysis
- Export formatting for reports
- Complex nested data navigation
🎯 **QA Engineers**
- API response validation
- Test data formatting
- Error response analysis
- Integration testing support

🎯 **System Administrators**
- Configuration file management
- Log file analysis (JSON format)
- API monitoring and debugging
- System integration testing


🎯 🔒 **Privacy & Security**

- **No Data Collection**: Your JSON data never leaves your browser
- **Local Processing**: All formatting happens locally on your machine
- **No External Servers**: Complete privacy and security
- **No Tracking**: We don't track your usage or collect analytics
- **Open Source**: Transparent codebase for security verification

🎯 📊 **Technical Specifications**

- **Browser Support**: Chrome, Chromium-based browsers
- **File Size Support**: Up to 10MB JSON files
- **Performance**: Optimized for large datasets
- **Memory Usage**: Minimal resource consumption
- **Compatibility**: Works with all websites and web applications

🎯 🎉 **What Makes Us Different**

🎯 **Comprehensive Language Support**
Unlike other JSON viewers that only handle pure JSON, we support output from 6+ programming languages, making us the only extension you need for any data format.

🎯 **Advanced Parsing Engine**
Our sophisticated parsing engine handles complex nested structures, malformed JSON, and edge cases that break other viewers.

🎯 **Professional Editor**
The built-in JSON editor with real-time validation and error detection is perfect for quick edits and testing.

🎯 **Smart Detection**
Our intelligent detection system knows when to format in-place vs. full-page, ensuring your browsing experience is never disrupted.

🎯 **Zero Configuration**
Works out of the box with sensible defaults, but provides advanced customization for power users.
🎯 📝 **Version History**

- **v2.0+**: Advanced programming language support, JSON editor, performance improvements
- **v1.5+**: Dark theme, file support, manual triggers
- **v1.0+**: Basic JSON formatting and syntax highlighting

🎯 🆘 **Support & Feedback**

- **Feature Requests**: We actively listen to user feedback
- **Bug Reports**: Quick response to issues
- **Documentation**: Comprehensive guides and examples
- **Community**: Active user community for tips and tricks

🎯 🏆 **Awards & Recognition**

- ⭐ **5-Star Rating** from thousands of developers
- 🏅 **Editor's Choice** for developer tools
- 💯 **100% Privacy Compliant** - no data collection

---

**Transform your JSON workflow today with JSON Viewer Pro - the most comprehensive JSON tool for Chrome!**

*Download now and experience the difference that professional JSON handling makes in your daily development workflow.*

✨ 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://djamol.github.io/test_content/
https://jsonplaceholder.typicode.com/posts      100 posts
https://jsonplaceholder.typicode.com/comments   500 comments

Technical

Version
7.1
Manifest
V3
Size
84.3KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
incoinbbbgipfabmmaldmhllgbfndhpa
Developer ID
u0f12084e6c08c934721033806ec9f370
Developer Email
[email protected]
Created
Aug 27, 2025
Last Updated (Store)
Oct 8, 2025
Last Scraped
Jun 6, 2026
Website

Similar extensions

Alternatives to JSON Viewer Pro Expand,Editor,Auto,Drag-Drop,Output Dump 2 json By PatilWeb, ranked by description similarity.

Data sourced from the Chrome Web Store · last verified Jun 6, 2026.