Free online BMP to MXL converter
Convert scanned BMP sheet music to editable MXL through optical music recognition.
Convert BMP to MXL online - free
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How it works
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Upload your .bmp file
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Perform .bmp to .mxl conversion
After successful file upload, click to convert when you are ready.
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How to convert bmp to mxl file
- Music composition
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101convert.com assistant bot
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A BMP file containing a scanned music score must be recognized as notation before a composition program can use it as MXL. MXL is compressed MusicXML, so this conversion requires optical music recognition (OMR), not a simple image-format change.
What the BMP format is
BMP is a raster image format that stores pixels rather than musical symbols or editable notation. Scanners, Windows image tools, notation software, and screenshot utilities can create BMP files; in music composition, BMP usually appears as a scan or screenshot of printed sheet music. The image may contain staff lines, notes, rests, clefs, lyrics, and layout, but none of these elements has semantic meaning until OMR software interprets them.
What the MXL format is
MXL is the compressed form of MusicXML, an interchange format for scores. It stores structured notation such as pitches, durations, measures, voices, instruments, dynamics, articulations, and page layout, allowing programs such as MuseScore, Finale, Sibelius, Dorico, and many notation editors to open and edit the score.
MXL is usually much smaller than an equivalent uncompressed MusicXML file and is convenient for transferring complete scores between compatible applications. It does not store the original BMP image as editable notation; it stores the OMR program's interpretation of that image.
How to actually convert BMP to MXL
Recommended desktop workflow
- Prepare a clear BMP scan. Crop away unnecessary borders, straighten the page, and use a resolution around 300–400 dpi when rescanning. Avoid heavily compressed, blurred, skewed, or handwritten images.
- Open the BMP in an OMR application such as Audiveris. Use File → Input or the equivalent import command, then run page recognition.
- Inspect every recognized measure in Audiveris. Correct the detected clefs, key and time signatures, note values, ties, tuplets, voices, lyrics, and barlines before exporting.
- Export the recognized score as MusicXML, commonly using File → Export → MusicXML. The result may have an
.xmlor.musicxmlextension. - Open that MusicXML file in MuseScore or another notation editor, verify playback and page layout, then use File → Save As and select the
.mxlformat if offered. - Reopen the saved
.mxlfile in a second compatible notation program. This checks both the MusicXML content and the compressed package.
Online option
You can try the free converter on 101convert.com without installing software. A direct image-to-MXL result is possible only when the conversion workflow includes music-score recognition; a basic image converter cannot infer notes from BMP pixels. Review the resulting score in notation software before relying on it.
Quality, compatibility, and limitations
OMR is not lossless. Recognition errors are common with low-resolution scans, damaged scores, multiple voices, overlapping notation, unusual symbols, handwritten music, guitar tablature, and dense orchestral pages. The exported MXL may also omit font-specific engraving details, exact page breaks, or symbols unsupported by the target application.
Use a notation editor to correct the score rather than editing the MXL archive manually. If your software accepts only uncompressed MusicXML, save an .xml or .musicxml version instead; renaming a BMP file or changing its extension does not create valid MXL.
Note: This bmp to mxl conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.
BMP vs MXL: format comparison
How the BMP and MXL formats compare on the properties that matter most for this conversion.
| Property | .BMP Bitmap Image File | .MXL Compressed MusicXML |
|---|---|---|
| Open standard | Partly open | Yes |
| Compression | Uncompressed | Lossless |
| Typical file size | Very large | Small |
| Opens in a web browser | Yes, natively | No |
| Further editing | Easy | Easy |
| Metadata support | Basic | Extensive |
| Plain-text readable | No | No |
| Best used for | Editing and post-production | Editing and post-production |
| Introduced | 1990 | 2004 |
| Developer | Microsoft | Recordare LLC / MusicXML (now maintained by MakeMusic, Inc.) |
| MIME type | image/bmp | application/vnd.recordare.musicxml+xml |
Frequently asked questions
Is the BMP to MXL converter free?
Yes, converting BMP to MXL on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.
How large can my BMP file be?
You can upload BMP files up to 50 MB and convert up to 5 files at once in a single batch.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert BMP to MXL?
No. The BMP to MXL conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid BMP file for this BMP to MXL conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.