JSON to YAML
Convert JSON into clean block-style YAML — handy for Kubernetes manifests, Compose files, and CI config.
This tool handles input and primary processing in your browser and is designed not to send the input to QuickKit’s server.
How it works
Output is block-style YAML (no flow collections except for empty [] and {}). Strings are left unquoted only when they are unambiguous; anything that could be read as a number, boolean, null, or that contains YAML punctuation is double-quoted. Numbers are written as their original JSON text, never rounded through a JavaScript Number, so 9007199254740993 and 1e400 stay unchanged; every JSON number is also a valid YAML 1.2 int or float, but how a YAML reader stores it (for example -0 as the integer 0, or 1e400 as infinity) is up to that reader. JSON nesting is limited to 1,000 levels. This tool converts JSON → YAML only; it does not parse YAML back to JSON.