YAML to JSON Converter
Convert YAML files and strings to JSON format instantly. Supports anchors, aliases, multi-document YAML, and all YAML 1.2 features.
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About this yaml to json converter
The YAML to JSON converter parses YAML into strict JSON for tooling that does not accept YAML directly. It is useful for CI configuration, Kubernetes manifests, Docker Compose fragments, and other files where indentation and anchors can make manual conversion error-prone.
Common uses
- Convert YAML configuration into JSON for APIs or scripts.
- Check the actual data shape produced by YAML anchors and aliases.
- Prepare JSON examples from deployment manifests.
Practical notes
YAML supports comments and richer syntax that JSON cannot preserve.
Review multi-document YAML files carefully because some consumers expect one document at a time.
Frequently Asked Questions
What is YAML?
YAML (Yet Another Markup Language / YAML Ain't Markup Language) is a human-readable data serialization format commonly used for configuration files (Docker Compose, Kubernetes, GitHub Actions, etc.).
Does this support YAML anchors and aliases?
Yes. The converter uses js-yaml which fully supports YAML 1.2 including anchors (&) and aliases (*) for data reuse.