Convert YAML to JSON Online

This direction is a parse, not a reformat. The YAML is read into real values first, so anything a YAML parser rejects (bad indentation, a stray tab, an unclosed quote) fails with a line and column rather than producing half-converted output.

The things YAML can express and JSON cannot are the interesting part. Comments have nowhere to go, so they are dropped. Anchors and aliases are resolved while parsing and then written out in full, which means a config that defined one block and reused it four times arrives as four copies and a noticeably larger file.

Multi-document files are handled. If your input contains several documents separated by three dashes you get a JSON array with one entry per document, while a single document gives you the object or array directly. Minify JSON collapses the result to one line when the destination does not care about whitespace.