YAML to JSON Converter
Parse YAML with the yaml package, guard against alias bombs, and serialize dates, big integers, and special values predictably.
YAML ↔ JSON
YAML anchors, aliases, and merge keys are resolved with a 100-alias safety limit. Integers beyond JavaScript’s safe range and non-finite numbers such as .inf and .nan are written as strings with a warning. Duplicate keys and syntax errors are reported with a line and column.
JSON Ready
Separate documents are joined by a “---” line.
Options
Documents 0
Input characters 0
Output size 0 B
About YAML to JSON Converter
Convert YAML to JSON with clear type handling, multi-document support, and line/column errors.
This tool runs locally in your browser. It does not upload your input, require an account, or store your data on a server. If a feature needs a network request, the interface asks before sending anything.