JSON Formatter & Validator

🧩 JSON Formatter & Validator

Validate payloads, pretty-print API responses, or compress JSON for production without sending data anywhere.

JSON debugging minus the clutter

Traditional online formatters often log your payloads or throttle large requests. This companion module mirrors the explanatory sections on our other free utilities so you can document best practices right inside the page.

Perfect for

Feature rundown

Dual mode output

Switch between human-readable indentation or compact minified payloads for embedding inside scripts.

Instant validation

Highlight syntax problems as you type and get the exact exception message from the JSON parser.

Copy & download ready

Export a clean .json file or keep it on your clipboard for Postman, Thunder Client, or artisan tinker sessions.

Usage checklist

  1. Paste JSON or drop it from your editor, then click “Format & Validate” to pretty print and catch syntax errors.
  2. Toggle to Minify before shipping to production config files or embedding into environment variables.
  3. Click Copy Output to move formatted data into your tests, seeds, or API docs.
  4. Need repeatable fixtures? Download the JSON file and commit it to your repository.
Because the formatter runs entirely in your browser, it is safe to inspect tokens, billing payloads, or PII-sensitive responses without exposing them to third parties. Close the tab and the data disappears.

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