Convert BMP to JPG free in your browser. Shrink huge uncompressed bitmaps into efficient modern files.
Convert your BMP
Drop a BMP file or click to browse. Everything runs locally in your browser.
Drop BMP file here
or click to browse
Higher quality means a bigger file.
Good to know: BMP files can be huge, but conversion runs locally so even large files process quickly.
Pick a file to start.
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Why BMP deserves converting
BMP is the heavyweight of image formats: no compression means enormous files. Converting to JPG typically shrinks a BMP by 90 percent or more, making it emailable, uploadable and web-friendly.
What happens when you convert
This tool parses the BMP header and pixel data directly in JavaScript, including 24-bit and 32-bit files, then encodes the result as JPG. Quality starts from perfect pixels, since BMP itself is lossless.
BMP files are huge because they store pixels uncompressed. A single photo can be tens of megabytes as BMP but shrink to a few hundred kilobytes as JPG.
Will quality suffer?
No. BMP is lossless, so the JPG output starts from perfect pixels. Any quality change comes only from the JPG format itself, and PNG output is pixel-identical.
Do BMP files have transparency?
Standard 24-bit BMP has no transparency. 32-bit BMP can carry an alpha channel, and this tool reads it when present.
Why is the conversion so fast?
BMP decoding is simple, just a header plus raw pixels, so even very large BMP files convert in a moment.
Are my images uploaded to a server?
No. The conversion runs entirely in your browser with local code. Your files never leave your device.