JSON ⇄ YAML
JSON ⇄ YAML is a free online converter supporting both JSON to YAML and YAML to JSON. Edit each format in its own panel, convert with one click, and copy the result — the full nesting hierarchy is preserved, making it ideal for config file migration.
Conversion runs entirely in your browser, so config content — even files containing secrets — never leaves your device. Free with no sign-up, it suits developers and ops engineers working with Kubernetes, Docker Compose, and CI configuration.
How to Use
- Enter JSON in the left panel or YAML in the right panel
- Click "JSON to YAML" or "YAML to JSON" to convert
- Review the output in the opposite panel
- Copy the result into your config file
FAQ
Is the JSON ⇄ YAML converter free?
Yes, it's completely free with no conversion limits and no account needed.
Is my config content uploaded anywhere?
No. The conversion happens entirely in your browser, so even configs containing secrets or credentials never leave your device.
What are typical use cases?
Common ones include migrating JSON configs to YAML for Kubernetes, Docker Compose, or GitHub Actions, and converting YAML back to JSON for programmatic parsing — both directions are supported.
Are nesting and data types preserved?
Yes. Objects, arrays, strings, numbers, and booleans are mapped semantically, and the full nesting structure is kept intact, so the output is ready to use.