SmartActions.

JSON Formatter

Format, minify, escape and unescape JSON privately on your device.

5 credits / successful runRuns on your deviceSign-in to runResult not retained

Your JSON stays on this device. Sign in to process your own input. New accounts receive administrator-configured starter credits; each successful action uses 5. Input is cleared when signing in or leaving this page.

Input JSON

Local processing

Up to 20 MB and 128 nesting levels. Syntax checks are free. Large integers and duplicate keys are preserved. Escape quotes the JSON; Unescape reads a quoted JSON string.

Result

A clearer view of your JSON.

Preview the built-in sample for free, or run an action on your own JSON. Results appear after credit settlement is confirmed.

Results are held only in this page. History keeps credit activity, not your content. Download before leaving.

Your content stays in your browser. Only execution authorization and credit activity are sent to our service. Results are not saved and cannot be restored after leaving this page.

WHAT YOU’LL GET

Your data.
Your device.

JSON Formatter, made simple.

Readable JSON with collapsible structure, exact number values and useful syntax errors.

Choose one action per run. Each successful action costs 5 credits. Copying, downloading or switching result views costs nothing extra. Inputs and results stay in this page and are cleared when you leave.

WHEN TO USE IT

What people use JSON Formatter for.

Read an API response

Turn a single-line payload into something with structure you can follow.

Find the syntax error

Get the position and reason for the parse failure rather than a generic message.

Prepare JSON for embedding

Escape it for a string literal, or minify it before sending.

How to use JSON Formatter

  1. Paste your JSON, or load the built-in sample to see how it works.
  2. Choose Format, Minify, Escape or Unescape.
  3. Switch between Text and Tree views at no extra cost.
  4. Copy or download the result; nothing is saved when you leave.
A FEW THINGS TO KNOW

Questions? We’ve got answers.

Does my JSON leave this device?

No. JSON is parsed in a browser worker. Only authorization and credit activity are sent to our service. Your JSON and results are not saved in your account or browser storage.

What does each action cost?

Format, Minify, Escape and Unescape each cost 5 credits per successful run. Syntax checks and the built-in sample preview are free. Copying, downloading and switching between Text and Tree do not cost extra credits.

What happens if processing is interrupted?

Check the original run before starting again. Failed or cancelled runs release reserved credits. Abandoned reservations expire after five minutes and are released when you next access your account. Results cannot be restored after leaving the page.

Are large numbers preserved?

Yes. Formatting preserves number tokens, exponent notation, duplicate object keys and string escapes without rounding them.

How large can my JSON be?

Input is limited to 20 MB and 128 nesting levels. Tree view is disabled above 10 MB or 2,000 nodes. Very large formatted outputs may require a smaller input or Minify.