---A JSON beautifier formats JSON with indentation and line breaks so it’s easier to read, debug, and review in code. A JSON minifier removes unnecessary whitespace to reduce payload size, which is useful for APIs, caching, and storage.
Use beautified JSON for development and debugging, and minified JSON for production systems where performance and size matter. This tool runs locally in your browser, so your JSON never leaves your device.
No. Beautifying changes whitespace only; the data stays the same.
Minification removes spaces and line breaks, making JSON smaller.
Standard JSON does not support comments. Some tools allow “JSONC”, but strict parsers will reject it.
It orders object keys alphabetically to create consistent output for diffs and debugging.
No. Everything runs locally in your browser.
Common issues are trailing commas, unquoted keys, single quotes, and invalid escape sequences.
Very large JSON can be slow in the browser. For massive payloads, consider server-side tooling.
Yes. Use bulk mode and separate blocks with ---.
Yes. Smaller payloads are faster to transfer and often faster to parse.
No. No tracking, no saving, no uploads.