Format, beautify and validate JSON online instantly — free, no signup required
Paste your JSON in the input box, click "Format / Beautify" to get clean, readable JSON with proper indentation. Use "Minify" to compress JSON into a single line. The validator instantly shows if your JSON is valid or not.
✅ Instant validation — know immediately if JSON is valid
✅ Beautify with 2 spaces, 4 spaces or tabs
✅ Minify JSON to reduce file size
✅ 100% free — no signup required
✅ Works entirely in your browser — data never leaves your device