Converter · Coming Soon

JSON to YAML Converter

Convert JSON objects to clean YAML format with configurable indentation and flow/block style options — all in your browser.

Get notified the day we launch. No spam, ever.

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What to expect

Built for developers

Convert JSON to YAML with configurable indentation, flow vs block style, and proper handling of special characters and multiline strings.

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Instant & in-browser

Runs client-side. Your data never leaves your browser.

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Zero ads

No ads, no trackers, no popups. Pure focus.

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File & paste support

Paste code or upload files. Both modes supported.

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Shareable links

Share output with teammates via a permanent link.

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Dark & light mode

Adapts to your system preference automatically.

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Mobile friendly

Fully responsive. Works on any screen size.

About this tool

OpenFormatter's JSON to YAML Converter converts JSON data to YAML format online for free. Handles nested objects, arrays, strings, numbers, booleans, and nulls. Configurable indent size (2 or 4 spaces), block vs flow style, and string quoting. Produces clean, readable YAML output. All processing happens in your browser — no data is sent to any server.

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