YAML powers config files for Kubernetes, Docker Compose, Ansible, CI pipelines and countless other tools, while JSON is the language of web APIs and JavaScript. Moving data between the two formats by hand is slow and error-prone — one missing quote or wrong indentation breaks everything.
This converter does the work for you. Paste YAML on the left and get clean, indented JSON on the right — or switch direction and turn any JSON object back into readable YAML. It runs entirely in your browser, so your configuration and credentials never leave your machine.
What YAML features are supported? Nested mappings, lists with -, lists of objects, and scalar types such as strings, numbers, booleans and null. Complex anchors and multi-document streams are out of scope.
Is the output valid JSON? Yes — the JSON output is always formatted with the indentation you choose and is safe to paste into any JSON parser.
Will it keep my secrets private? Yes. Conversion happens locally with no network calls, so API keys and passwords stay on your device.
Convert between YAML and JSON instantly in your browser. Paste YAML to get clean indented JSON, or JSON to get readable YAML, with 2- or 4-space indentation and one-tap copy. Runs entirely offline, so your config files and secrets never leave your device.