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📄 YAML Validator & Formatter

Validate single or multi-document YAML locally in the browser and only emit normalized YAML for a controlled safe subset.

Local Only No uploads and no sign-up required. Validate is syntax-only; Format only emits a controlled safe subset. Do not paste production secrets.
Normalized Output
Results will appear here.
Status Initializing
Engine Loading
Docs 0
Root -
Blocked 0
Errors 0
Details & Diagnostics
The YAML engine is initializing. Validate and Format stay disabled until it is ready.
Usage & Privacy

V1 performs local syntax validation and controlled normalization. Validate checks parseability and reports document counts, root types, and error locations. Format only accepts a safe subset — no comments, anchors, merge keys, directives, or explicit tags.

Not a Kubernetes, Docker Compose, GitHub Actions, or Ansible-specific validator. No schema, lint, policy, or security checks.

All processing stays local in the browser — no uploads. Avoid pasting production secrets.

Validate and format single-document or multi-document YAML locally in your browser, with syntax checks, document counts, root-type summaries, and normalized output only for a controlled safe subset. Use it for configuration preflight, documentation snippets, and review before copying. Data is not uploaded and YAML content is not executed; avoid pasting production secrets.