YAML Validator & Formatter
Validate, format, beautify, and minify YAML documents instantly. Perfect for Kubernetes manifests, Docker Compose files, CI/CD configs, and more.
About YAML Formatting
YAML (YAML Ain't Markup Language) is a human-readable data serialization format widely used for configuration files in Kubernetes, Docker Compose, GitHub Actions, Ansible, and more.
Validation: Checks for correct YAML syntax including proper indentation, valid key-value pairs, correct use of colons and dashes, and proper quoting. Reports the exact line and column of errors.
Format: Parses and re-serializes your YAML with consistent indentation. Optionally sorts keys alphabetically for easier scanning and diff-friendly output.
Minify: Converts block-style YAML to compact flow style, reducing file size while preserving all data. Useful for embedding YAML in scripts or reducing payload size.
Everything runs in your browser — no data is sent over the network.