What is the JSON Formatter & Validator?
The JSON Formatter turns messy or minified JSON into readable, indented output and tells you exactly where a syntax error is.
How to use it
- Paste your JSON into the input box.
- Click Format to beautify or Minify to compress.
- Copy or download the result.
Features
- Error messages with position
- 2-space indentation
- Minify mode
- Works offline
The JSON Formatter & Validator is part of the free ProgramGeeks.net toolbox and runs entirely in your browser.
FAQ
Is my data sent to a server?
No. Every tool on ProgramGeeks.net runs fully in your browser, so your input never leaves your device.
Does it fix invalid JSON?
It reports the error so you can fix it; it does not guess at corrections.