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Developer & Web

YAML Formatter and Validator

Tidy YAML to consistent indentation and check it parses, with the line and column of any error.

  • Runs in your browser
  • Works on mobile
  • In: YAML
  • Out: YAML
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About YAML Formatter and Validator

Reformats docker-compose files, Kubernetes manifests, GitHub Actions workflows and any other YAML to 2 or 4 space indentation, keeping your comments.

It parses with a YAML 1.2 parser first, so anything that would fail in your pipeline fails here with a position and a message instead. Multi-document files (separated by ---) are supported.

How to use it

  1. 1Type or paste your text, or open a file.
  2. 2Choose any options - the result updates as you type.
  3. 3Copy the result or download it as a file.

Questions

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