JSON Formatter
Paste JSON to validate, pretty-print, or minify. Errors are pinpointed with line/column. Browser-only.
100% in your browser. Files never uploaded.
Result will appear here.How to use
- 1Paste JSONValidates as you type. Errors include line and column.
- 2Pick output style2-space, 4-space, or minified.
- 3Copy or downloadOne click to copy to clipboard or save as a .json file.
FAQ
Is my JSON sent anywhere?
No. Parsing and formatting happen entirely in your browser using the native JSON.parse / JSON.stringify.
Will it preserve key order?
Yes — JavaScript JSON.stringify preserves the order keys were inserted in.