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Developer Tools

JSON Formatter and Validator Online

Use JSON Formatter and Validator online to process developer data and code with a result you can review before using.

Related tools

XML Formatter and Validator→CSV to JSON Converter→JSON to CSV Converter→Base64 Encoder and Decoder→

How to use

  1. Enter or paste the content you want to process.
  2. Adjust the available options and run JSON Formatter and Validator.
  3. Review the result before copying, downloading or publishing it.

What this tool does

JSON Formatter and Validator. This tool completes a specific online task with direct controls and a result you can review.

Worked example

Try {"active":true,"items":[1,2]}. Remove the comma between fields to see the effect on validation. After fixing it, check that field names and types match what your system expects.

Tips for a better result

  • Keep a copy of the original code or data.
  • Syntax validation does not prove that every value is correct for your system.
  • Test the output in the system that will actually consume it.