FREE DEVELOPER TOOL

JSON Formatter & Validator

Format unreadable JSON, validate its syntax or create a compact version. Everything runs locally in your browser.

DEVELOPER

JSON Formatter & Validator

Format compact JSON, validate its syntax and minify formatted data.

How to use the JSON validator

  1. Paste JSON into the input area.
  2. Select Format to add readable indentation, or Minify to remove whitespace.
  3. If the JSON is invalid, the tool displays the syntax problem.

Is my JSON uploaded?

No. Parsing and formatting happen in your browser, so the JSON is never sent to CYBERPODIUM or another service.