YAML ↔ JSON Converter

Convert configuration between YAML and JSON without sending it anywhere. The YAML side uses the standard js-yaml parser with the default schema.

YAML

Conversion happens entirely in your browser. No configuration is uploaded.
YAML anchors, custom tags and comments are not preserved when converting to JSON.
JSON numbers keep their numeric value, but formatting such as 1.0 or 1e3 is normalized by the parser.
Number precision: both parsers use IEEE-754 doubles. Integers above 2^53-1 can lose precision, and 1.0 is indistinguishable from 1.
Duplicate mapping keys are rejected by the YAML parser instead of silently overwriting one another.