Convert BMP to JPG
BMPs from scanners and old software are enormous — convert them to JPG at a fraction of the size, locally.
Drag an image here or tap to browse
BMP (and any other image) · free · your image stays on your device
How it works
- Drop the BMP. Old scans, Paint drawings, exports from legacy Windows software — drag the .bmp in and see its dimensions and (usually impressive) file size.
- Pick your quality. For scanned documents, 80–90 keeps the text sharp; for photos the default 90 is a safe pick.
- Download the JPG. The result is typically 10–50× smaller. Save it, e-mail it, or archive it — the preview shows the exact size first.
BMP is the format that time forgot: scanners, Windows Paint and legacy industrial software still produce it, and every file is enormous because the pixels are stored raw and uncompressed. That makes BMPs terrible to e-mail, upload or archive in bulk.
Converting to JPG keeps the full resolution while cutting the size by one or two orders of magnitude. This tool does it in your browser: decode, re-encode with the quality you pick, preview the true output size, download. No server sees the file — which matters for the things BMPs often are: scanned IDs, medical images, internal screenshots.
Scanning old family photos? After converting, try the photo restorer to repair scratches and fading, or the compressor if the JPG must fit under a portal’s KB limit.
Frequently asked questions
Why are BMP files so gigantic?
Because most BMPs store every pixel completely uncompressed — a plain 4000×3000 scan is around 36 MB no matter what it shows. JPG applies photographic compression, which typically brings that same image down to about 1–3 MB.
Where do BMP files still come from in the first place?
Mostly from scanner default settings, Windows Paint, screenshots from industrial or medical equipment, and old software exports. The format survives because it is simple — not because it is a good way to store or share images.
Do I lose quality converting BMP to JPG?
JPG is lossy, so mathematically yes — but from quality ~90 the difference is invisible for photos and scans. If you have a genuine archival requirement for pixel-exact data, keep the BMP as master or convert it to lossless PNG instead.
Is the conversion done on my machine?
Entirely. The BMP is decoded and re-encoded to JPG by code running in your browser — old family photo scans or internal screenshots never travel to a server.
More tools
Every tool runs right in your browser — free, no sign-up, no watermarks. Your images never leave your device.