Format, beautify, and pretty-print JSON in your browser. Adjust indent, sort keys. 100% client-side, no data sent to server.
A JSON formatter turns minified or messy JSON into readable, indented text. Developers use it to inspect API responses, debug config files, or prepare snippets for documentation. This tool runs entirely in your browser: paste or type JSON, choose indent size (2 or 4 spaces), and optionally sort object keys for stable diffs. No data is sent to any server, so you can safely format logs or payloads containing tokens. The output can be copied or downloaded for use in code or tickets.
Formatting only adds whitespace; it doesn’t fix syntax. Trailing commas, unquoted keys, or single quotes make JSON invalid. Fix those first.
Format adds indentation and newlines for readability; minify removes all unnecessary whitespace to shrink size.
Standard JSON doesn’t allow comments. If your file has // or /* */, it’s JSONC or similar; strip comments before using this tool.
No. Object key order doesn’t affect semantics in JSON; sorting only makes comparison and diffs easier.
Yes. This tool runs client-side only. Your data never leaves your device, so API keys or PII in the JSON are not sent to our servers.