YAML to JSON Converter
Convert everyday YAML config into JSON, with nesting, lists and typed scalars.
Supports maps, lists, nesting, scalars and comments. Anchors and block scalars are not supported.
Frequently Asked Questions
Which YAML features are supported?
Key–value pairs, nested mappings by indentation, lists with dashes, inline flow lists like [1, 2], quoted strings, numbers, booleans and null, plus comments starting with #.
What is not supported?
Anchors and aliases (&a / *a), multi-line block scalars (| and >), tags, and multiple documents (---) are not supported. For complex YAML, use a full parser library such as js-yaml.
Are values typed?
Yes. Unquoted values that look like numbers, true/false or null become JSON numbers, booleans and null. Quote a value to force it to stay a string.
Why convert YAML to JSON?
JSON is natively understood by JavaScript and most APIs, so converting config files makes them usable in code, validators and online formatters.
Related Tools
JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting.
CSV to JSON Converter
Turn CSV into a JSON array of objects, with quoted-field support and type detection.
JSON to TypeScript Interfaces
Paste JSON and get clean TypeScript interfaces, with nested types named automatically.
JSON to CSV Converter
Turn a JSON array into clean CSV with automatic headers, ready for Excel or Sheets.