JSON Formatter
Paste your JSON below
Free, fast, privacy-friendly JSON formatter, beautifier, minifier, and fixer for everyone.
Instantly format, beautify, minify, and repair your JSON online. Enjoy a beautiful, VS Code-inspired editor with line numbers, syntax highlighting, and error highlighting. If your JSON is invalid, our tool will show you the error location and suggest an auto-repaired version with a side-by-side diff. Advanced options include indentation, tabs, key sorting, Unicode escaping, and minification. Free, fast, privacy-friendly JSON formatter, beautifier, minifier, and fixer for everyone.
What is a JSON Formatter?
A JSON Formatter takes your raw, minified, or messy JSON and instantly formats it into a readable, indented structure. This makes it easy to understand, debug, and share your JSON data. Our tool features a modern, VS Code-like editor with line numbers, syntax highlighting, error highlighting, and instant repair suggestions.
Why use this Online JSON Formatter?
Our formatter is more than just a pretty printer. It provides a modern, developer-friendly experience with instant formatting, error highlighting, repair suggestions, VS Code-like editing, and privacy-first processing—making it the best choice for anyone working with JSON.
- Instantly format, beautify, and minify JSON with a beautiful, developer-friendly interface.
- See errors with line and column numbers.
- Get an auto-repaired JSON suggestion and see a side-by-side diff.
- Advanced options: indentation, tabs, key sorting, Unicode escaping, and minification.
- Syntax highlighting and line numbers for easy editing and debugging.
- Works on any device, privacy-friendly, no data stored or sent to a server.
- This tool can also automatically repair common JSON errors and offer a quick fix button if your input is broken. See a side-by-side diff of your original and repaired JSON.
Common Use Cases
Whether you're a developer, student, or data analyst, this tool helps you quickly format, beautify, minify, repair, and understand JSON for a variety of real-world scenarios:
- Beautifying minified JSON for easier reading and debugging.
- Formatting API responses and configuration files for clarity.
- Teaching and learning JSON structure and error fixing with a real code editor experience.
- Preparing JSON for sharing, documentation, or code reviews.
Security & Privacy
Your JSON data never leaves your browser. All formatting, minification, and repair happens locally, ensuring your data is private and secure. No data is sent to any server.