JSON Formatter and Validator
Paste JSON, fix it fast, and copy the result.
Pretty-print or minify JSON, validate it instantly, and get the exact error line and column when something is wrong. Built to work smoothly on phones with big touch targets and no horizontal scrolling.
JSON input
Ready
Output
Waiting for action
Formatted / minified JSON
Your result will appear here.
Validation details
Tap Validate to check your JSON.
No error detected yet.