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JSON Validator


Online JSON Validator

JSON Validator online tool lets you validate JSON files for free. JSON lint will also highlight syntax errors with line numbers so you can easily fix any issues in your JSON code. Validate your JSON online effortlessly with our best JSON validator!

How to Use JSON Validator online

  1. Copy and paste your JSON code into the linter.
  2. You may also click on the “Choose a file” button to upload a JSON file.
  3. Click the “Validate JSON” button to validate your JSON data.
  4. The JSON validator will show the message on the validity of your JSON code.
  5. It will also display error messages by highlighting syntax errors with line numbers.
  6. Copy or download the valid JSON data as a .json file.

Updated on February 5, 2025