Free YAML Formatter & Converter
Paste your YAML to format, validate, and optionally convert it to JSON. Fix indentation errors and get clean, properly structured YAML output.
YAML Made Simple
YAML is widely used for configuration files in Docker, Kubernetes, CI/CD pipelines, and more. Its indentation-based syntax is human-friendly but error-prone. This tool catches mistakes instantly and formats your YAML consistently, saving you from frustrating deployment failures caused by a single misplaced space.
Frequently Asked Questions
Yes. The tool can format YAML and also convert it to equivalent JSON with a single click. This is useful when you need to transform Kubernetes manifests, Docker Compose files, or configuration files between formats.
The formatter validates your YAML and highlights any syntax errors with line numbers and clear descriptions, making it easy to find and fix indentation issues, missing colons, or invalid characters.