Validate JSON File - Check JSON Syntax

Check if your JSON file is valid and find syntax errors. Free JSON validator. Detailed error messages.

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Validate JSON

Check if your JSON file is valid and find any errors.

How to Validate JSON

  1. 1Upload JSON file
  2. 2JSON is validated
  3. 3View validation report

Why Use This Tool?

  • Syntax Check - Find errors
  • Error Messages - Know what is wrong
  • Valid Confirmation - Peace of mind

Frequently Asked Questions

What errors are found?

Missing brackets, commas, invalid strings, and other JSON syntax errors.