Help
About this tool
Paste JSON to format it with readable indentation, minify it into a single line, or sort object keys alphabetically. Validation runs entirely in your browser.
How to use
- Paste your JSON into the input box.
- Choose Format or Minify, set the indentation, and optionally sort keys.
- Copy the result, or fix any validation errors shown inline.
Is my JSON uploaded anywhere?
No. Formatting and validation happen entirely in your browser.
Can I reformat minified JSON?
Yes. Paste minified JSON, switch to Format, and pick your preferred indentation.