Converter · Coming Soon

YAML to JSON Converter

Convert YAML documents to JSON format instantly — handles anchors, aliases, multi-document streams, and complex nested structures — all in your browser.

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

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What to expect

Built for developers

Convert YAML to JSON with support for YAML 1.2 spec, anchors and aliases, multi-document streams, and both pretty-printed and minified JSON output.

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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 YAML to JSON Converter converts YAML data to JSON format online for free. Supports YAML 1.2 specification including anchors (&), aliases (*), merge keys (<<), block and flow styles, multi-line strings, and multi-document streams. Outputs pretty-printed or compact JSON. All processing happens in your browser — no data is sent to any server.

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