Paste raw or minified JSON and this tool formats it with clean indentation. If the JSON has a mistake, such as a missing comma or quote, it tells you what went wrong. Developers use it to read API responses and check config files.
How to use it
- Paste your JSON into the box.
- Formatted JSON appears below as you type.
- Fix any error message shown, then copy the clean result.
Questions about this tool
Is my JSON sent to a server?
No. Parsing happens in your browser only.
How do I make JSON smaller?
Use the JSON Minifier tool on this site to remove all spaces and line breaks.