JSON to YAML Converter
Paste JSON to get clean, correctly indented YAML for config files — nested objects and arrays included, all in your browser.
JSON in, readable YAML out
YAML has become the default language of configuration — Docker Compose, GitHub Actions, Kubernetes, CI pipelines, and countless static-site setups all speak it because it's easier for humans to read and edit than JSON's braces and quotes. When you have data or config in JSON and need it as YAML, this converter does the translation faithfully, including deeply nested objects and arrays of objects.
It handles the subtle parts that matter for valid YAML: nested structures get consistent indentation, list items are dash-prefixed, and strings that could be mistaken for numbers, booleans, or that contain special characters are quoted so the meaning survives. Paste your JSON and copy clean YAML you can drop straight into a config file.
Private and instant
Everything runs in your browser — your data never leaves your device.
Frequently Asked Questions
What does this converter do?
It turns JSON into equivalent YAML — the human-friendly format used for config files in tools like Docker Compose, GitHub Actions, Kubernetes, and many static-site generators.
Does it handle nested objects and arrays?
Yes. Nested objects become indented keys and arrays become dash-prefixed lists, including arrays of objects, at any depth.
How are strings quoted?
Plain strings are left unquoted where safe; values that could be misread as numbers, booleans, or that contain special characters are quoted so the YAML round-trips correctly.
Is my data private?
Yes. Conversion runs entirely in your browser — nothing is uploaded or stored.
More free converters and formatters for developers.