Input YAML
Formatted
Common use cases
- Validate Kubernetes manifests before kubectl apply
- Standardize indentation across team configs
- Catch YAML syntax errors before deploy
- Pretty-print compact YAML from APIs
Frequently asked questions
How is this different from a JSON formatter?
YAML allows comments, has significant whitespace, and uses dashes for arrays. The validator catches errors like inconsistent indentation that JSON parsers miss.
Does it preserve comments?
No — js-yaml strips comments during the load/dump cycle. If you need comment-preserving formatting, use yamllint locally.