JSON Formatter
Pro JSON formatter with support for beautifying, minifying, validating, sorting, Unicode conversion, and escaping. 100% local and secure.
About This Tool
A versatile online JSON processing assistant designed specifically for developers. It can instantly transform messy JSON strings into clear hierarchical views (beautify) or perform high-speed compression (minify) to save space. The unique "Sort Keys" feature recursively sorts all object properties alphabetically, making API comparisons much easier. Additionally, it features built-in Unicode conversion, string escaping, and real-time validation to help you quickly spot syntax errors. All operations are performed locally in your browser, ensuring your data never leaves your device—the perfect companion for daily development and debugging.
Features
- ✨ One-Click Format: Beautify messy or minified JSON into a clear hierarchical view
- 🗜️ High Compression: Instantly remove whitespaces and newlines for minimal size
- 🔤 Key Sorting: Recursively sort all JSON object keys alphabetically for easy comparison
- ✅ Live Validation: Built-in syntax checking with precise error messaging and location
- 🌐 Unicode Support: Convert \uXXXX sequences back to readable Chinese text instantly
- 🔏 Escape/Unescape: Handle JSON string escaping and unescaping with ease
- 📥 Smart UI: Support for clipboard pasting, one-click copying, and .json file export
- 🛡️ Privacy First: 100% local processing, no server uploads, total data security