JSON Validator

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How to Validate JSON

1. Paste or upload your JSON in the input area above.
2. Click "Validate JSON" to check syntax and structure.
3. Review results: See detailed error messages with approximate line numbers.
4. Fix errors: Use the feedback to correct your JSON syntax.

JSON Validator Use Cases

• API Testing: Validate API responses before processing.
• Configuration Files: Check JSON config files for syntax errors.
• Data Imports: Verify JSON data before importing to databases.
• Learning: Understand JSON syntax errors and how to fix them.

Why Choose Our JSON Validator?

• ✅ 100% Client-Side: Your JSON data never leaves your browser.
• ✅ Detailed Errors: Get specific error messages with line numbers.
• ✅ Structure Analysis: See data type and structure information.
• ✅ Instant Results: No upload wait times—validation happens immediately.
• ✅ Free & Unlimited: No registration, no file size limits, no paywalls.