JSON Formatter
Beautify and validate JSON data with syntax highlighting
What is JSON Formatter?
JSON Formatter beautifies and validates JSON data with syntax highlighting, making it easy to read and debug.
When to use this tool
- Debugging API responses that return compact JSON
- Reading and understanding nested JSON structures
- Validating JSON before sending it in an API request
- Cleaning up minified JSON from logs or config files
How it works
Parses the input string as JSON, then pretty-prints it with configurable indentation. Invalid JSON triggers a detailed error message with the exact position of the syntax error.
Examples
About JSON Formatter
Beautify and validate JSON data with syntax highlighting It runs entirely in your browser — no files are uploaded to any server, ensuring complete privacy and instant results.
- •Validate JSON syntax instantly
- •Format or minify JSON output
- •Convert JSON to YAML, CSV, or XML
- •Handle large files in-browser
Last updated: 2025-01-15
FAQ
Beautify and validate JSON data with syntax highlighting
Yes, completely free. No signup required.
Yes. Runs entirely in your browser, no files uploaded.
Yes, works on any device with a modern browser.
No, everything runs in your browser.