Home › Developer › JSON Formatter & Validator

JSON Formatter & Validator

Format, beautify and validate JSON with clear error messages.

How to use the JSON Formatter & Validator

  1. Enter or paste your input in the tool above.
  2. The result updates instantly. Click the button where one is shown.
  3. Copy the result and use it anywhere.

About this json formatter & validator

This free online json formatter & validator helps you with json formatter quickly and accurately. It works on mobile and desktop, needs no sign-up and processes everything locally in your browser.

Frequently asked questions

Is the JSON Formatter & Validator free?

Yes. The json formatter & validator is 100% free with no sign-up, limits or watermarks.

Is my data safe when I use the json formatter & validator?

Yes. Everything runs in your browser. Your input is never uploaded to a server or stored.

Does it validate JSON?

Yes. If the JSON is invalid, the error message shows what went wrong.

More free tools

Base64 Encoder & DecoderEncode text to Base64 or decode Base64 back to readable text.URL Encoder & DecoderEncode or decode URLs and query strings safely.Unix Timestamp ConverterConvert Unix timestamps (seconds or milliseconds) to readable dates.HEX to RGB Color ConverterConvert HEX color codes to RGB values with a live preview.Random Password GeneratorCreate strong random passwords securely in your browser.UUID GeneratorGenerate random version 4 UUIDs in bulk.