FlinkTools

JSON formatter

Format, minify and validate JSON, see it as a tree, and convert it to CSV or YAML and back.

Processed on your device, never uploaded
Result
The formatted JSON appears here as you type.
Mode
Indent
Convert to

What it does

A JSON formatter adds indentation so JSON is readable, and points to the exact place where it is broken. Your JSON stays in your browser.

How to use it

  1. 1Paste or drop JSON.
  2. 2Fix any marked errors.
  3. 3Copy the result or download it as a file.

Questions

Is my data sent anywhere?

No. Formatting and validation run on your device.

How large can the JSON be?

Up to about 50 MB in the browser.

Can it convert to CSV?

Yes, when the JSON is a list of objects.

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