JSON ↔ YAML Converter
Convert between JSON and YAML formats instantly in your browser.
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Frequently Asked Questions
YAML (YAML Ain't Markup Language) is a human-readable data serialisation format commonly used for configuration files, CI/CD pipelines, and Kubernetes manifests.
Yes — everything runs 100 % client-side. Your data never leaves your device, so it's safe to paste sensitive configuration.
This converter handles the most common YAML features: key-value mappings, nested objects, arrays, scalars, quoted strings, multiline strings (| and >), and inline JSON. Some advanced features like anchors (&) and aliases (*) are not supported.
YAML is easier to read and edit by hand, which makes it popular for configuration files in Docker Compose, GitHub Actions, Ansible, and Kubernetes.
Comments (lines starting with #) are ignored during YAML → JSON conversion, as JSON does not support comments.