YAML Validator
Validate YAML syntax with instant feedback and error messages. All processing happens locally.
FAQ
What YAML features are validated?
The validator checks for valid YAML syntax including objects, arrays, strings, numbers, booleans, and null values. Advanced features like anchors (&anchor), aliases (*alias), multi-line strings (| and >), flow collections, document separators (---), and merge keys (<<) are all supported.
Is my data secure?
Yes, all validation happens locally in your browser. Your data never leaves your device.
What happens if my YAML is invalid?
If your YAML is invalid, you'll see a clear error message indicating what went wrong and which line (if applicable) has the issue.
Can I validate YAML files?
Yes, you can paste YAML content directly into the input field, or use the live validation feature to get instant feedback as you type.