JSON ↔ YAML Converter
Convert between JSON and YAML instantly. Validation, indentation control, and file download — all in your browser.
Paste JSON to convert to YAML
This tool runs entirely in your browser. Your data never leaves your device.
JSON to YAML FAQ
What is YAML?
YAML (YAML Ain't Markup Language) is a human-readable data format commonly used for configuration files. It uses indentation instead of braces and supports comments, making it popular with DevOps tools like Docker Compose, Kubernetes, and Ansible.
Are JSON comments preserved?
JSON does not support comments natively. If your JSON contains non-standard comments, they will be stripped during parsing. The resulting YAML output will not include them.
What indentation options are available?
You can choose between 2, 4, or 8 spaces for indentation. The default is 2 spaces, which is the most common convention for YAML files.
Can I convert nested JSON?
Yes. Deeply nested objects and arrays are fully supported. The converter handles complex structures including nested arrays of objects, mixed types, and null values.
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