What does YAML Formatter actually do?

The YAML formatter re-indents a document and checks that it parses. It does not convert YAML to JSON or TOML, and it does not execute custom tags. Anchors and merge keys are only as correct as the parser allows.

When should I use YAML Formatter?

Use it on CI workflows and Kubernetes manifests before you commit.

When should I not use YAML Formatter?

Do not use it to execute YAML or to treat indentation changes as a semantic diff.

What does YAML Formatter not do?

Does not resolve every custom YAML tag. Does not convert between YAML, JSON, and TOML — that is the config converter.

YAML Formatter

Validate and reformat YAML with consistent indentation for configs and CI files. Free online — runs locally, no upload.

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YAML Formatter