Drop your MXL file. We'll convert it to MusicXML right here in your browser, your file never leaves your device.
Drop your file here
or click to pick from your device
How it works
Click the dropzone above or drag a MXL from your desktop. Files of any size, there's no upload, so there's no upload limit.
The conversion runs entirely in this tab using JavaScript and WebAssembly. Your file never touches our servers, we don't have any.
Get your MusicXML the moment the conversion finishes. Convert another, or close the tab.
Your file is never uploaded. The entire conversion runs in your browser using WebAssembly. We can't see what you convert because we have no server to see it.
Server converters cap free users at 1-2 GB and gate larger files behind a paid plan. Since nothing uploads, our limit is whatever your browser can handle.
No account required. No watermark on the output. No queue. Open source, every line of conversion code is public.
Formats involved
MXL is the compressed (zipped) variant of MusicXML, a zip containing the inner XML score plus a META-INF/container.xml manifest pointing at it. Most digital sheet music ships as MXL because it's typically 70-80% smaller than the uncompressed MusicXML. Every notation app that reads MusicXML reads MXL.
How to open
Same as MusicXML, Finale, Sibelius, Dorico, MuseScore, Notion all read MXL natively.
MusicXML is the lingua franca of digital sheet music, XML schema designed by Recordare (now MakeMusic, makers of Finale). Carries staves, notes, articulations, dynamics, lyrics, and layout in a way that survives transfer between notation programs (Finale, Sibelius, Dorico, MuseScore). Most digital sheet music sites (musicnotes.com, sheetmusicplus.com) sell MusicXML alongside PDF.
How to open
Finale, Sibelius, Dorico, MuseScore, Notion, StaffPad, every modern notation app. Plain XML in any editor.
Related tools
How we compare
| Feature | Ustwineconvert | CloudConvert | iLovePDF | FreeConvert | Smallpdf |
|---|---|---|---|---|---|
| Files uploaded to a server | |||||
| Free file size limit | No limit | 1 GB | 200 MB | 1 GB | 5 GB |
| Free conversions per day | Unlimited | 10/day | Limited | Limited | 2/day |
| Signup required | |||||
| Watermark on output | |||||
| Open source | |||||
| Works offline (after first load) |
Last verified May 2026 from each competitor's pricing and FAQ pages. Limits and pricing change frequently.
FAQ
Yes. No signup, no watermark, no daily file count limit. The entire engine is open source, you can read the conversion code on GitHub.
Nowhere. The conversion runs entirely in your browser using JavaScript and WebAssembly. Your file is never uploaded to our servers. We don't have any servers handling files, there's nothing for us to log, store, or accidentally leak.
Whatever your browser can hold in memory. Practically, this means a few hundred MB on most computers, significantly larger than the 1-2 GB caps that server-upload converters charge for. Very large files (multi-GB) may require closing other browser tabs first.
Compressed sheet music distribution. Sheet music interchange between notation programs. The most common reason to convert is compatibility, MusicXML works in places where MXL doesn't, or vice versa.
Same as MusicXML, Finale, Sibelius, Dorico, MuseScore, Notion all read MXL natively.
Once the page is loaded, the conversion itself runs entirely offline. The first time you use a tool, your browser downloads the conversion library (a one-time cache). If you reload while offline, the page won't load, but you can install the site as a Progressive Web App for full offline use.
Single file at a time for now. Batch conversion is on the roadmap, for now, drop one file, download the result, then convert the next.