Is this YAML to JSON converter free?

Yes, completely free. No sign-up, no API key, no limits. Open the page and start converting.

Does my YAML data get sent to a server?

No. Conversion runs entirely in your browser using JavaScript. Your YAML never leaves your device, making it safe to use with private configs, API keys, or credentials.

What YAML features does it support?

The converter handles YAML 1.2 including multi-document files, anchors & aliases, block and flow sequences/mappings, multi-line strings (literal and folded blocks), comments (stripped in output), and all scalar types (strings, numbers, booleans, null).

What happens with YAML anchors and aliases?

Anchors (&) and aliases (*) are fully resolved. The JSON output contains the expanded values — aliases are replaced with the data they reference.

Can I convert multi-document YAML files?

Yes. YAML files with multiple documents separated by --- are converted to a JSON array, one element per document.

What's the difference between pretty-print and minify?

Pretty-print formats the JSON with 2-space indentation for readability. Minify removes all whitespace to produce the smallest possible JSON string, useful for APIs or storage.

Free Developer Tool

Convert YAML to JSON
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Paste any YAML — Kubernetes manifests, Docker Compose files, CI configs, or API specs — and get clean, formatted JSON in one click. No login, no uploads, no limits.

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Instant Conversion

Convert as you type or paste. No button clicks needed — results appear immediately.

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100% Private

All processing happens in your browser. Your YAML never leaves your device.

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Formatted Output

Choose between pretty-printed JSON with configurable indentation or compact minified output.

Indent:

YAML Input15 lines

JSON Output

Frequently Asked Questions

Everything you need to know about YAML to JSON Converter.

Convert YAML to JSONInstantly

Instant Conversion

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Formatted Output

Frequently Asked Questions

Convert YAML to JSON
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