Convert YAML to JSON (and back) without your config ever leaving the browser. Handles multi-document files like Kubernetes manifests, gives real parse errors with line numbers, and works offline once loaded. Free, no signup. The conversion core is open source on GitHub.

Convert YAML to JSON instantly — free, in-browser, no upload. Handles multi-document YAML, anchors, and merge keys. JSON to YAML conversion included. Built for config files, CI pipelines, and Kubernetes manifests.