JSON formatter and validator

JSON validation

JSON is valid

{
  "project": "UniTools",
  "version": 1,
  "active": true
}

Format, validate, pretty-print, and minify JSON in one browser-based tool for quick debugging and cleanup.

This page is for the common developer workflow: paste JSON, see whether it is valid, and turn unreadable payloads into something you can inspect quickly.

You can use it to pretty-print, validate, or minify JSON when debugging APIs, config files, logs, or webhook payloads.

For normal formatting and validation tasks, the work happens directly in the browser without a heavy interface.

FAQs

Can I validate broken JSON here?

Yes. The page is built to tell you whether the JSON is valid and make valid payloads easier to read.

Can I minify JSON too?

Yes. It supports both readable formatting and compact output.

What is this most useful for?

Typical use cases include API responses, config snippets, log payloads, and quick debugging tasks.

Do I need a full IDE for this?

No. The point is to handle short JSON tasks quickly in the browser.

What related tool should I use next?

If you are cleaning text around the payload, the text tools can help with counts and quick edits.

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JSON formatter and validator

JSON validation

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