How to format and validate JSON online
Beautify messy API payloads, catch syntax errors, and minify JSON before you ship.
Paste and format
Drop raw JSON into the formatter and beautify with indentation. Invalid JSON surfaces a clear parse error so you can fix trailing commas, quotes, or truncated responses from an API.
Validate before you commit
Use the Odin JSON Formatter to pretty-print and validate configs or API payloads before you commit or ship them.
Minify for transport
Switch to minify when you need a compact payload for logs, configs, or network requests. Keep a pretty-printed copy for humans and a minified copy for machines.