Convert JSON to YAML

Paste your JSON on the left and this tool converts it to YAML instantly, right in your browser. JSON (JavaScript Object Notation) is the lingua franca of web APIs — compact, strictly typed, and supported everywhere. YAML is a human-friendly, indentation-based format popular for configuration like Docker Compose, Kubernetes, and CI pipelines.

The conversion is completely client-side — there's no upload, no queue, and no account. Copy the YAML output or download it as a file, and convert as many documents as you like.

Looking for a different conversion? See all format converters.

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JSON to YAML Converter — frequently asked questions

How do I convert JSON to YAML?
Paste or type your JSON in the left panel and the YAML appears on the right instantly. Copy it with one click or download it as a file. Everything happens in your browser.
Is my data uploaded to a server?
No. The conversion runs entirely in your browser with JavaScript — your data never leaves your device, so it's safe to convert configuration, API payloads, and other sensitive files. You can even go offline once the page has loaded.
Is this converter really free?
Yes. No sign-up, no payment details, no file-size paywall, and no watermark on the output. A single unobtrusive ad slot covers hosting.

All format converters

JSONXMLJSONCSVYAMLJSONYAMLXMLYAMLCSVXMLJSONXMLYAMLXMLCSVCSVJSONCSVYAMLCSVXML

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