TOOLS IM

JSON Formatter

Format, beautify and minify JSON with error highlighting.

Your data is processed in your browser and is not uploaded to our servers.

About the JSON Formatter

JSON Formatter makes JSON data readable with clean indentation, or minifies it for production. Invalid JSON is reported with the exact line and column of the error, and keys can be sorted alphabetically.

How to use the JSON Formatter

  1. Paste your JSON.
  2. Choose the indentation or minify, and optionally sort keys.
  3. Click "Format JSON" and copy or download the result.

Frequently asked questions

Is my JSON sent to a server?

No. Formatting and validation happen in your browser, so API keys and private data stay on your device.

Can it fix invalid JSON?

It shows where the error is so you can fix it; it does not change invalid data automatically.