JSON Formatter & Viewer Pro - Beautify, Edit, Validate Chrome extension security report

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