YAML Validator
Validate YAML syntax instantly to catch indentation errors and structural issues. Get clear error messages with line and column numbers to ensure your configuration files are production-ready.
Validate YAML syntax instantly to catch indentation errors and structural issues. Get clear error messages with line and column numbers to ensure your configuration files are production-ready.
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Tip
Always use two or four spaces for indentation; never use the Tab key in YAML files.
Did You Know?
YAML is a superset of JSON, meaning valid JSON is technically valid YAML 1.2.
Best Practice
Use a linter in your CI/CD pipeline to catch YAML errors before they break your deployments.
Q: Why does my YAML fail validation even if it looks correct? A: The most common reason is the accidental use of tab characters instead of spaces, which are invisible in many editors but strictly invalid in YAML.
Q: Can I validate YAML with multiple documents in one file? A: Yes, the validator supports multi-document files separated by the standard triple-dash (---) syntax.
Q: Does this validator support YAML 1.2? A: Yes, it supports the latest YAML specifications to ensure compatibility with modern DevOps tools and cloud frameworks.
Tip
When a string contains special characters like colons or brackets, wrap it in double quotes.