NextJSON - JSON Parser, Editor, and Formatter

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 Formatter Pro

Beautiful JSON viewer with sidebar — search, copy paths, export, pin nodes, and history. In 2026, handling JSON data doesn’t have to be a hassle. JSON Formatter Pro is a browser extension that automatically detects and formats JSON data on webpages, turning raw responses into a clean, interactive viewer. Instead of reading unformatted JSON, you can explore data in a structured tree view that makes nested objects and arrays easier to understand. This helps when reviewing API responses, debugging data, or inspecting JSON documents directly in the browser. Automatic JSON Detection Automatically detects JSON responses on supported pages and opens them in a structured viewer. Interactive Tree View Browse JSON data in an expandable and collapsible tree layout. Search Inside JSON Search keys and values within large JSON responses. You can: • find specific fields quickly • highlight matching results • move through large datasets more easily JSON Path Generator Generate JSONPath for selected nodes to help with inspection and debugging. Copy Tools Copy useful data directly from the viewer, including: • key • value • path • object Pinned Nodes Pin important fields for quicker access while inspecting large responses. History Tracker View recently opened JSON responses with details such as: • page URL • JSON size • timestamp Size Analyzer See response size information such as bytes, KB, or MB for quick payload inspection. Dark and Light Theme Choose the appearance that feels most comfortable during use. Works Across Websites Use the extension on supported webpages that return JSON content, including local development environments. Lightweight and Fast Designed to stay responsive while viewing large JSON responses. Privacy JSON Formatter Pro does not collect or sell personal data. Processing happens locally in the browser. Why Use JSON Formatter Pro JSON Formatter Pro helps make raw JSON easier to read, search, inspect, and export without leaving the page. The main issue was the “Who Should Use This Extension” section because Chrome Web Store often treats role-stuffing as keyword spam. Remove that whole block and keep the description focused on actual functionality.

JSON Viewer

Pretty JSON Viewer – an online json formatter, validator, and viewer for easy formatting and validation of json files. If you regularly work with json files, you know how crucial it is to have an efficient and user-friendly tool for viewing, formatting, and validating your data. Whether you're a developer or data analyst, json viewer online is the perfect solution. With its intuitive interface, this tool makes it easy to explore and interact with complex json objects. By using this powerful tool, you can quickly format raw data, ensuring that your file is structured correctly for easy reading and debugging. It's designed to handle even the most complex documents seamlessly, offering features like tree viewer, json formatter online, and built-in json validator to ensure accuracy and efficiency in your workflow. 🧑‍💻 Why Choose This Tool? Extension is a must-have extension for anyone who needs to view, format, and validate data files quickly and easily. Here's why: JSON Viewer is a must-have extension for anyone who needs to view, format, and validate json files quickly and easily. Here's why: ✅ Quick and Simple to Use: No complicated setups. Just install and start using the online json viewer instantly. ✅ Format Your Text: Instantly format, making it easier to read and debug. ✅ Validator: Validate your text to ensure it's error-free and properly structured. 🛠️ What Can You Do With This Software? Whether you're dealing with a simple data structure or a more complex document, this tool lets you perform a range of tasks: 💡 Validate JSON Files: Check the validity with the built-in validator. 💡 Format and Beautify: Use the json beautifier to properly indent and structure your data for easier reading and debugging. 💡 View File: Instantly content in an organized, readable format. 💡 JSON Parser: Use the tool to correctly format and structure, making it easier to read and debug. 💡 Edit Files: With the json editor online, you can modify content directly in the browser. 💡 Tree Viewer: View your structure in a tree format for a more visual representation. This is an essential online json viewer for anyone who wants to effortlessly manage and manipulate data. ⭐ Key Features of Tool ▸ Formatter and Beautifier: The software helps you transform your raw into a properly formatted version, while the json beautify feature makes your documents neat and readable. ▸ Validator: Ensures your data is correctly formatted, preventing errors when working with APIs or databases. ▸ Parser: Easily parse data to extract information or troubleshoot errors in your code. ▸ Pretty: The json pretty feature organizes data in a structured format, enhancing clarity. 🔍 How to View JSON Files The json viewer is extremely user-friendly. Here’s a step-by-step guide on how to use it: 1️⃣ Open the extension in your browser. 2️⃣ Paste your document or upload your file. 3️⃣ The tool will automatically parse and display your data in a clear, formatted view. 4️⃣ You can now format, validate, or edit your file as needed. 🔝 Benefits of Using JSON Viewer 🔑 Online: You don’t need to download any software; access the online json viewer directly from your browser. 🔑 Save Time: Instantly format, validate, and view documents, saving you valuable development time. 🔑 No Registration Needed: Unlike other tools, document viewer doesn’t require an account or registration to use. 🔑 Works with Large Documents: The extension supports extensive structures, making it ideal for complex content handling. These benefits make software the go-to solution for anyone working. ❓ How to Open JSON File If you're wondering how to open a document, the process is quick and easy with software. Here's how to do it: 💭 Open the Tool: Navigate to the online json viewer in your browser. 💭 Upload or Paste: Paste your data directly into the tool or upload a file. 💭 View Your File: After uploading, the tool will instantly show the content in a readable format. 💭 Expand and Explore: Use online json viewer to easily explore different sections. This simple process ensures that you can access and online view content in no time, no matter how complex it is. 🌳 The JSON Tree Viewer One of the standout features of the tool is the tool. This visual format lets you see your document as a collapsible tree, making it easy to: 🌱 Expand and collapse different sections of your data. 🌱 View nested objects clearly. 🌱 Quickly navigate large and complex files. 🚀 Conclusion: Why Choose JSON Viewer In conclusion, this software is a powerful yet easy-to-use extension that helps your tasks, validate your data, and format it for better readability. Whether you're a seasoned developer or just learning about json files, this tool will save you time and effort by simplifying the process of working with data.

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