YAML Formatter & Validator
Beautify, lint and convert YAML to JSON in real time - parsed locally, never uploaded
Formatting options
What can this YAML tool do?
Built for Kubernetes manifests, docker-compose files and CI pipelines: everything is parsed in your browser and never uploaded.
- Beautify: normalize 2 or 4 space indentation, tidy quotes and block scalars.
- Validate: indentation errors, unclosed quotes and flow collections are reported with line numbers.
- Convert to JSON: numbers, booleans and null keep their types for direct use in APIs.
- Structures: multi-document files (---), anchors and aliases, | and > block scalars, inline arrays and objects.
- Optional key sorting and comment retention make config diffs and reviews easier.