Does it support YAML anchors and aliases?

Yes. js-yaml fully supports YAML anchors (&anchor) and aliases (*alias) for DRY configuration files.

What about multi-document YAML files?

Multi-document YAML (using '---' separators) produces an array of JSON objects in the output.

No. Comments are not part of the JSON specification and cannot be included in the output.

Yes by default. Toggle to minified in the options panel.

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Parse YAML files and output clean JSON — supports anchors, aliases, multi-document YAML. All processed in your browser.

Files never uploadedInstant conversionNo account needed

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1Drop your YAML file onto the converter above, or click to browse and select a file.
2Adjust any conversion options such as output format, quality, or delimiter settings.
3Click the Convert button. The file is processed instantly in your browser.
4Download your converted JSON file. Your original file is unchanged.

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Your files never leave your device. All processing happens in your browser using WebAssembly.

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No upload wait times, no server queues. Conversion starts immediately and completes in seconds.

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Single-file conversion is always free with no account required. Upgrade for batch processing and more.

Does it support YAML anchors and aliases?: Yes. js-yaml fully supports YAML anchors (&anchor) and aliases (*alias) for DRY configuration files.
What about multi-document YAML files?: Multi-document YAML (using '---' separators) produces an array of JSON objects in the output.
Can I paste YAML directly?: Yes. Use the paste tab.
Are YAML comments preserved?: No. Comments are not part of the JSON specification and cannot be included in the output.
Is the JSON pretty-printed?: Yes by default. Toggle to minified in the options panel.