JSON Validator
Use our free JSON validator to validate JSON syntax and schema instantly. This JSON validator checks JSON errors and validates against JSON Schema - completely free with no registration required.
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About JSON Validator
Our free online JSON validator helps you validate JSON syntax and schema instantly. Whether you're developing APIs, working with JSON data, or debugging JSON errors, this JSON validator makes it easy. For other developer tools, check out our JSON formatter and regex tester.
The JSON validator checks JSON syntax for errors and can validate JSON against JSON Schema. It provides detailed error messages, line numbers, and validation results. Explore more developer tools for all your coding needs.
Perfect for developers, API developers, and anyone working with JSON data. The JSON validator is completely free, requires no registration, and provides instant results. If you need to format JSON, try our JSON formatter.
Key Features:
- Validate JSON syntax - Check JSON for syntax errors instantly
- JSON Schema validation - Validate JSON against JSON Schema
- Error detection - Get detailed error messages with line numbers
- JSON structure analysis - View keys, types, and structure
- Instant validation - Get results immediately
- No registration required - Use instantly, completely free
Validate JSON
Valid JSON
Invalid JSON
How to Use JSON Validator
- Enter or paste your JSON code into the JSON input area
- (Optional) Enter a JSON Schema to validate the JSON against
- Click "Validate JSON" to check for errors
- Review the validation results and any error messages
Tip: JSON Schema validation requires the jsonschema library.
If schema validation is not available, you'll still get syntax validation results.
Frequently Asked Questions
Is the JSON validator free to use?
Yes, our JSON validator is completely free to use. No registration or payment required.
What is JSON Schema validation?
JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. It helps ensure your JSON data matches a specific structure.
Does it show error locations?
Yes, the validator shows line numbers and column positions for syntax errors.