JSON Formatter

Format, validate, minify, and sort JSON — all modes in one tool. Nothing is uploaded.

Input JSON

Output

FORMAT

Tips

Paste JSON in the left pane. Output updates instantly.

Runs entirely in your browser

Dedicated pages

Direct links for each JSON operation.

JSON Formatter & Pretty Printer

Format and pretty-print JSON instantly in your browser. No upload, no server — your data stays on your device.

Minify JSON by removing all whitespace in your browser. Useful before embedding in code or sending over a network.

Validate JSON syntax instantly in your browser. Get clear error messages. No upload required.

Sort all keys in a JSON object alphabetically, recursively. Free, private, runs in your browser.