Identical to YAML, written with a shortened three-letter extension. GitHub Actions and similar tools use this spelling.
YML to XML Converter
Convert YML files to XML free in your browser — no signup, no install, and the file is never uploaded to a server. XML opens almost anywhere, so the result works where YML did not.
What changes in this conversion
- XML opens almost everywhere, so the converted file will work on devices and programs that refused the original YML.
- The data structure (objects, arrays, values) is preserved exactly — only the notation changes. Comments in the original file are not carried over.
How to use
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Add your YML file
Drag the YML file onto the drop area above, or click it to pick a file from your device. You can add several files at once.
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Confirm XML as the output
XML is already selected as the output format on this page. This format converts straight through with no extra settings.
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Run the conversion
Press the convert button. Processing happens on your own device, so the time depends on your computer rather than a server queue.
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Download the XML file
When it finishes, download the XML file. Converting multiple files gives you the option to download them together as a ZIP.
About these formats
A general-purpose markup language that expresses structure through tags. Its support for strict schema validation makes it common in enterprise systems and public data exchange.
Frequently asked questions
Is converting YML to XML really free?
Yes. YML to XML conversion is completely free with no signup, no watermark, and no daily limit on the free plan for ordinary use.
Are my YML files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so the YML file never leaves your device. That is also why it works without an internet connection once the page has loaded.
Does the XML file get bigger than the YML?
It can go either way. Both formats are lossless, so nothing is thrown away — the size difference comes from how each one packs the same data.
Is there a file size limit for YML to XML conversion?
The free plan handles files up to 200MB. Because processing happens on your own device, very large files depend on your computer's memory rather than a server quota.
Convert YML files to other formats
Convert other formats to XML
Data converter
What each file format is, what it is used for, and which formats it can be converted to.
Open converter Browse the full format reference