From YAML to JSON values
Mappings, sequences, strings, numbers, booleans, and null values are converted into their corresponding JSON representation.
YAML to JSON
Parse a YAML document and convert it into consistently formatted JSON in your browser.
Conversion workspace
Convert one YAML document into formatted JSON.
YAML input
JSON output
Your data stays on this device.
Clear parsing errors
Invalid indentation, incomplete collections, and other YAML syntax errors are reported without replacing your input.
YAML to JSON FAQ
Are YAML comments preserved?
No. JSON has no comment syntax, so comments are not included in the converted output.
Can I convert multiple YAML documents?
This tool accepts one YAML document at a time so the result has one unambiguous JSON value.