YAML ↔ JSON Converter
Convert between YAML and JSON formats instantly. Bidirectional conversion.
Convert between YAML and JSON formats instantly. Bidirectional conversion.
Paste YAML in the left textarea and click "YAML to JSON" to convert it, or paste JSON in the right textarea and click "JSON to YAML" to go the other direction. Both conversions happen instantly in your browser using the js-yaml library. Error messages are displayed if the input is invalid.
YAML and JSON are the two most popular data serialization formats. YAML is preferred for configuration files (Docker Compose, Kubernetes manifests, CI/CD pipelines) because of its human-readable syntax. JSON is the standard for APIs, data exchange, and JavaScript applications. Developers frequently need to convert between the two when migrating configurations, testing APIs, or sharing data across systems that expect different formats.
All conversion happens in your browser. The js-yaml library runs client-side, and no data is ever transmitted to a server. Your configuration files and data remain completely private.