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YAML Formatter

Format and validate YAML in your browser. Fix indentation issues and confirm structure before deploy.

Format

YAML

Parse and format YAML documents.

Ctrl+Enter to Format

Recent Payloads

Payloads you format will appear here for quick access. Stored locally in your browser.

What this tool does

Parse and re-format YAML with consistent indentation, or validate structure before you ship manifests and configs.

Privacy

YAML content is processed locally. Nothing is sent to a server.

Use cases

  • Normalize Kubernetes or Docker Compose snippets
  • Validate CI/CD pipeline YAML before commit
  • Compare hand-edited YAML against a known-good structure

Troubleshooting

If kubectl or Helm reported error converting YAML to JSON, that failure happened before Kubernetes read your manifest as an object — that guide covers which layer failed and what the reported line number actually points at.

Seeing did not find expected key? A mapping key is indented to a column that matches no open block — and the line number that came with it is probably not where the mistake is.