Free Online YAML to JSON Converter
Convert YAML to JSON and JSON to YAML online. Useful for configuration files, APIs, Kubernetes manifests, Docker Compose, and CI workflows. Free and client-side.
100% Client-Side · Your data never leaves your browserHow to Use YAML to JSON Converter
Choose YAML to JSON or JSON to YAML, paste your input, and click Convert.
- YAML to JSON outputs pretty-printed JSON.
- JSON to YAML outputs readable YAML with two-space indentation.
- Conversion happens entirely in your browser.
Frequently Asked Questions
When should I convert YAML to JSON?
Convert YAML to JSON when an API, validator, or tool only accepts JSON but your source configuration is YAML.
Can YAML comments be preserved?
No. Comments are not part of the parsed data model, so they are lost during conversion.
Is my data uploaded?
No. The conversion runs locally in your browser.