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Powerful JSON/JSONC/JSON5 editor and converter with syntax highlighting. A powerful Chrome extension and standalone web application for converting between JSON, JSONC (JSON with Comments), and JSON5 formats with advanced editing features and comment preservation. ADVANCED EDITOR • Syntax highlighting with JSON support • Line numbers for easy navigation and debugging • Smart bracket matching and auto-closing • Instant error detection and highlighting SMART FORMAT CONVERSION • JSON ↔ JSONC ↔ JSON5 bidirectional conversion • Preserve comments when converting between JSONC and JSON5 • Same-format processing preserves all comments and formatting • Automatic property name quoting/unquoting • Real-time conversion as you type PROCESSING TOOLS • Format and prettify JSON data • Compress/minify by removing unnecessary whitespace • Escape/unescape JSON strings for embedding • Convert numbers ↔ strings ADVANCED SORTING • Sort object keys alphabetically (A-Z or Z-A) • Deep sorting for nested objects • Preserve or reorganize data structure FILE OPERATIONS • Copy to clipboard with one click • Download converted files • Support for multiple file formats
JSON Formatter
The original JSON Formatter, now with optional dark mode 🌚 Auto-formats JSON when you load it in a browser tab. - Fast, even on very long JSON pages - Dark mode - Syntax highlighting - Collapsible trees, with indent guides - Clickable URLs - Negligible performance impact on non-JSON pages (less than 1 millisecond) - Works on any valid JSON page – URL doesn't matter - Buttons for toggling between raw and parsed JSON - FIXED: Exports the parsed JSON to window.json so you can explore it in Dev Tools Note: this extension might clash with other browser extensions that modify the DOM before it runs. If it doesn't seem to be working, try disabling other extensions. If it clashes with an extension you need, open an issue and I'll try to find a solution. PRIVACY No tracking, no advertising, and nothing else nefarious.
JSON Viewer
Most aesthetic & customizable JSON/JSONP viewer with themes, custom search, syntax highlighting/checking & copy features. 🧩 JSON Viewer – The Ultimate JSON & JSONP Formatter for Chrome Beautiful, blazing-fast, and fully customizable. Visualize and format JSON like never before with 27 themes, collapsible nodes, raw/highlight toggles, and advanced editing options – all in one lightweight Chrome extension. 🔥 Why Choose JSON Viewer? Make raw JSON readable, searchable, and stunningly presented. Whether you’re a developer, data analyst, or API tester – this is the must-have tool in your browser. 🎨 27 Gorgeous Built-in Themes – Choose what suits your eyes 🧩 Fully Customizable – Colors, tab size, formatting limits, line numbers, and more 📎 Collapsible Nodes – Navigate complex objects with ease 🔍 Clickable URLs & Omnibox Support – Type json + TAB to paste and preview JSON instantly 📁 Works with Local Files – Just enable permissions in the Extensions page 🔄 Scratchpad Mode – Type, paste, and format JSON in a standalone editor 📊 Sort by Keys + Editable JSON – Tweak and analyze live data ⏱️ Header Options – Add timestamp and source URL to your previews ⚙️ Quick Tips 💡 Enable Incognito and Local File Access in chrome://extensions for full functionality 🛠️ Conflicts with other JSON formatters? Disable the others for best results 🔁 After updates, Chrome may reset permissions—simply recheck the access boxes if needed 🌐 Perfect for: REST API developers Front-end and back-end engineers Anyone working with structured data in the browser 📥 Install now to transform the way you view JSON in Chrome!
JSON-handle
It's a browser and editor for JSON document.You can get a beautiful view. And transcoding Unicode Base64 URL with decode & encode. Edit and browse JSON document in a node tree diagram. After installed, open the URL will trigger JSON-handle: 安装后打开下面网址可以看到JSON-handle启动的效果： http://jsonhandle.sinaapp.com/demo.json
JSON Pretty
Use JSON Pretty to parse, format, and pretty print json data. A powerful json formatter and beautify tool for easy data readability. Introducing the ultimate JSON Pretty Chrome extension for web developers, data analysts etc. Our extension brings you everything you need to make raw data human-like and enhance your reading experience. Say goodbye to messy files with json pretty print that’s easy to use, visually organized, and equipped with essential features. If you need a reliable online JSON formatter, look no further. It’s the perfect tool for anyone who wants to work with minimal effort. From raw text to collapsible nodes and syntax highlighting, this extension has it all! 1️⃣ JSON Beautify. This feature organizes data with prettification, so you can focus on what matters. 4️⃣ Light and dark. Themes help you customize the experience to make json pretty and readable in any condition. 5️⃣ Secure. The extension works with your data locally. You can paste or upload source directly from your computer. 6️⃣ Syntax Highlighting. Syntax highlighting simplifies print and transforms how you see JSON pretty format online. Working with raw data can be challenging. Pretty printing converts raw into a structured, organized view, reducing errors and enhancing readability. Our json beautifier makes code pretty for easier analysis and debugging. It’s not just a JSON parser online; it’s a productivity tool for anyone. ☄️ Easy Navigation • Collapsible nodes for quick overview • Easy to use form to copy-paste your data ☄️ Customization Options • Light and dark modes supported • Syntax highlighting for easier code recognition ☄️ Comprehensive data Support • Raw format view for unfiltered access • Supports online beautification and pretty json format This extension serves as your go-to online json viewer. Whether you’re formatting, viewing, or debugging, this online formatter has you covered. It’s compatible with raw and prettified structure, making it a versatile tool for all your needs. ➤ Raw Format Support • The raw format lets you view output in its original form. • Switch seamlessly between raw and pretty formats. ➤ Real-Time Work • See your changes in real-time with live json prettify updates. • Ideal for developers and data handlers who need instant feedback. ➤ Easy-to-Use Interface • Access JSON pretty print online without leaving your browser. • Intuitive design makes beautification simple, even for beginners. • Instantly load, format, and view data without hassle. 🙋♂️ How to Use the JSON Pretty Extension? 1. Open the output tab in Chrome 2. Data will be parsed automatically 3. Use collapsible nodes, syntax highlighting to customize the view 4. Switch between pretty format and raw view as needed 5. Click on extension icon to open the extended editor From json beautification to structured data graphs, this extension is perfect for those who handle large files or complex structures regularly. 🎯 Ideal for Beginners and Experts Alike This formatter online is suitable for all skill levels. Beginners will find beautifier features helpful in understanding what is JSON format, while advanced users will appreciate the organized, pretty printing JSON capabilities. - JSON reader online. Ideal for developers who work across different programming languages. - This tool is perfect for developers, data analysts, or anyone who needs a simple way to organize and view it. - You can see json in easy readability form right in your browser. 1. Can I switch between formatted and raw views? Yes! You can toggle between the prettified and raw formats within the buttons in the bottom of the tab, giving you flexibility based on your needs. 2. Is the JSON pretty online secure to use? Yes, it processes data locally in your browser, ensuring that your data stays private and secure. 3. Does the extension support syntax highlighting? Absolutely. The extension highlights different elements in files using colors, making it easier to spot key elements and understand the structure. Transform your experience and work smarter with the ultimate viewer and formatter. Start exploring json prettifier today and discover how easy it can be to prettify json and take your data management to the next level!
