Validate YAML syntax and structure instantly to catch indentation errors and formatting issues. Get detailed error reports with line and column numbers to help you fix configuration problems before they impact your application.
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Best Practice
Always use spaces instead of tabs for indentation to ensure compatibility across all YAML parsers.
Did You Know?
YAML stands for 'YAML Ain't Markup Language', emphasizing its focus on data serialization.
Tip
Quote keys or values that contain special characters like ':', '{', or '[' to prevent parsing errors.
Q: Why does my YAML fail validation even if the structure looks visually correct? A: YAML is extremely sensitive to whitespace; usually, this is caused by invisible tab characters or minor indentation mismatches.
Q: Can I use this tool to validate Kubernetes or Docker-compose files? A: Yes, this tool validates standard YAML syntax which is used by Kubernetes, Docker, Ansible, and most modern CI/CD tools.
Q: Does this validator support multiple YAML documents in a single file? A: Yes, it correctly parses and validates files containing multiple documents separated by the standard --- marker.
Q: Why is the line number in the error message slightly different than expected? A: Error reporting depends on where the parser first realizes the syntax is broken, which might be slightly after the actual character mistake.
Best Practice
Validate your YAML before deploying to production to prevent system downtime or deployment failures.