How is the YAML shown?

It's parsed and rendered as neatly indented JSON so the structure is easy to scan.

No, parsing happens entirely in your browser.

What if the YAML is invalid?

A parse error message is shown so you can locate the problem.

Drop a YAML file to parse and view its structure as JSON. Private and browser-based.

Drop a YAML file or click to uploadProcessed in your browser — never uploaded.