BMP Converter
Convert uncompressed BMP files into compact JPG, PNG, WebP, or any format you need — instantly, in your browser.
Drop your BMP files here
Only BMP files accepted
Related tools
Why use PixelTools to convert BMP
Native BMP decoding
Browsers read BMP files natively, so your file is decoded instantly with no special decoder required.
Massive size reduction
BMP is uncompressed. Converting to JPG or WebP typically shrinks the file by 90% or more.
Convert to any format
Choose JPG, PNG, WebP, GIF, or ICO as your output format.
No upload required
Everything is processed locally in your browser. Your files never leave your device.
Three steps to convert BMP
- 1
Drop your BMP file
Select or drag your .bmp file into the drop zone. Browsers decode BMP natively, so the raw uncompressed pixel data is read locally with no upload and no special decoder needed.
- 2
Pick your output format
Choose JPG, PNG, WebP, GIF, or ICO. The pixel data is drawn to an HTML canvas and re-encoded — compressed formats like JPG apply DCT compression, cutting the file size by 90% or more with no visible quality loss at screen resolution.
- 3
Download your converted files
Each output file is ready to attach, upload, or archive — including on platforms like WordPress and Squarespace that reject BMP outright. Download individually or as a ZIP.
Who converts BMP files, and to what?
BMP is a format people inherit, not choose — it comes from Windows Paint, legacy scanners, and enterprise software nobody has updated in years. Converting shrinks these files down to something actually shareable.
IT admin clearing out legacy file archives
Old Windows servers running discontinued enterprise software accumulate BMP exports from internal tools and ticketing systems. Converting batches to JPG cuts archive storage by 80-90% without losing any detail relevant to record-keeping.
Office worker emailing old scanner output
Flatbed scanners from the early 2000s defaulted to BMP output, and those files still circulate in HR and legal departments. A 6 MB BMP scan of a signed contract becomes a 500 KB JPG that fits any corporate email attachment limit.
Genealogist sharing digitized family photos
Older scanning software like Kodak EasyShare and early HP Photosmart tools saved scans as BMP by default. Converting to JPG makes the files uploadable to ancestry platforms like Ancestry.com and FamilySearch, which don't accept BMP.
Teacher preparing Windows Paint artwork for a class gallery
Windows Paint's default BMP output means student digital art projects land as 5-15 MB files that can't be embedded in Google Sites or uploaded to Canva. Converting to PNG or JPG brings each file under 1 MB.
QA engineer archiving legacy test screenshots
Older Windows test automation tools like WinRunner and early SilkTest saved failure screenshots as BMP. Converting these to PNG or JPG makes them viewable in Jira and Confluence without a special viewer plugin.
Frequently asked questions
What is a BMP file?
+
BMP (Bitmap) is Microsoft's uncompressed raster image format, built into Windows since Windows 3.1. It stores every pixel as raw, uncompressed data, which is simple but produces very large files.
Why are BMP files so large?
+
BMP applies no compression at all — a 4-megapixel photo can be 12 MB or more as BMP. The same image is typically under 1 MB as JPG, with no visible difference at normal viewing sizes.
Where do BMP files usually come from?
+
Older flatbed scanners, legacy Windows enterprise software, and Microsoft Paint (which defaulted to BMP before Windows 7) are the most common sources of BMP files still in circulation today.
Which format should I convert BMP to?
+
Pick JPG for the biggest size reduction and the widest compatibility. Pick PNG if you need lossless quality for further editing, since BMP itself has no compression to lose.
Can I batch convert BMP files?
+
Yes. Drop as many BMP files as you have and convert them all to your chosen format in one batch. Download individually or as a ZIP.
Are my files uploaded anywhere?
+
No. Your browser decodes BMP files natively — no server, no upload. Everything happens on your device.
Convert from BMP
Other formats
BMP Converter now
Free, instant, no account needed.
Start converting →