convertix
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Install Convertix

Use it like an app, no store and no account. Your files still never leave your device.

iPhone and iPad

  1. Open this page in Safari.
  2. Tap Share, the square with an arrow pointing up.
  3. Choose “Add to Home Screen”.

Android

  1. Tap your browser's ⋮ menu.
  2. Choose “Install app” or “Add to Home screen”.

Computer

  1. In Chrome or Edge, click the install icon in the address bar.
  2. In Safari on Mac, choose File and then “Add to Dock”.
Home / JSON formatter and validator

JSON formatter and validator

Paste your JSON to format it so it's readable, minify it or find the exact error. It's not sent to any server.

No sign-up and nothing uploaded to a server: everything happens in your browser. See for yourself.

How to use: JSON formatter and validator

  1. Paste your JSON into the box.
  2. Click "Format" or "Minify."
  3. Copy or download the result.

Frequently asked questions

Is my data sent anywhere?

No. The parsing happens in your browser; it's safe for private data.

Does it accept comments or trailing commas?

No: strict JSON doesn't allow them, and the validator will point them out.

Can I convert it to Excel?

Yes, with the JSON to Excel tool.

About this tool

JSON with one extra comma or a missing quotation mark stops working altogether. The validator tells you the line and column where the problem is.

Formatting adds indentation so it's easy to read; minifying removes spaces to make it smaller.

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