Format & validate JSON
Paste JSON to pretty-print, minify or validate it. Choose the indentation, optionally sort keys, and your formatted file is stored privately in your account.
No sign-up needed — runs instantly in your browser.
How it works
- 1Paste your JSON
- 2Choose indentation and options, then press Run
- 3Download the formatted JSON or find it in your files
Frequently asked questions
- What if my JSON is invalid?
- You'll get a clear error pointing to where parsing failed, so you can fix it.
- Can I minify instead?
- Yes — turn on Minify to strip all whitespace into a single compact line.
Related tools
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Developer