JSON Tools

JSON Pretty

Quick pretty-print with collapsible structure.

Client-sideRuns entirely in your browser — your data never leaves your device.

JSON Pretty is a free JSON Tools utility that runs entirely in your browser — nothing you enter is uploaded.

JSON input
Beautified output

How to use JSON Pretty

  1. Enter or paste your JSON into JSON Pretty's input field to begin.
  2. Use the Indent setting to control the result.
  3. Select Format and the result updates immediately, with no upload.
  4. Use Copy to keep or reuse the result.

About this tool

JSON Pretty is a static, client-side tool with no backend. JSON Pretty parses JSON entirely in your browser, so large or deeply nested documents stay on your device.

Because parsing is local, sensitive payloads never leave the page. No data is sent anywhere, so it stays fast and private by default.

Frequently asked questions

What does JSON Pretty do?

JSON Pretty lets you process your input right in the browser using the Indent control, with the result shown instantly and nothing uploaded.

Do I need an account for JSON Pretty?

No — JSON Pretty needs no account, sign-up or installation.

Is my input private in JSON Pretty?

Yes — your input never leaves your device; JSON Pretty does all the work in your browser.

Can JSON Pretty handle large or deeply nested JSON?

Yes. JSON Pretty parses JSON entirely in your browser, so large or nested documents stay on your device and never upload.

Does JSON Pretty work offline?

Once the page has loaded, JSON Pretty keeps working with no network connection.

Related json tools