JSON Formatter
Turn compact or difficult-to-read JSON into a clear structure, validate its syntax, or minify it for transport.
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Paste JSON above, then format or minify it locally in your browser.
On this device · background worker
No signup. Your input is never uploaded.
How to use the JSON Formatter
Paste your JSON into the Input box, or load the example.
Pick how many spaces to indent with.
Choose Format JSON to lay it out, or Minify to make it as small as possible.
Read the Output, then choose Copy result.
Questions about the JSON Formatter
Paste it into the input box and choose Format JSON. The tool checks the JSON, then lays it out with indentation you pick, so it is easy to read. If something is wrong, it tells you what and where.
Choose Minify. It removes spaces and line breaks so the JSON is as small as possible, which is useful for sending it or storing it.
Yes. Formatting runs in your browser, in a background worker, so your JSON is not uploaded. You can also load an example to see how it works.