📄 YAML Formatter
Prettify and validate YAML instantly. Paste your YAML on the left, get clean output on the right.
Input
Output
Formatted YAML will appear here…
About YAML
YAML (YAML Ain't Markup Language) is a human-readable data serialization format widely used for configuration files — Docker Compose, GitHub Actions, Kubernetes, Ansible, and more all use YAML.
Common pitfalls: mixing tabs and spaces (YAML only allows spaces), unquoted strings with special characters like : or #, and inconsistent indentation.