Convert JPEG to BMP
Free online converter for JPEG files. Uncompressed Windows bitmap. Nothing to install, no watermark, and every file is deleted automatically.
Drag and drop your files
or
Upload a JPEG file to convert it to BMP. Up to 3 files at once, 100 MB each.
Free · up to 3 files · 100 MB each · files deleted automatically after 1 hour.
About JPG and BMP
JPEG .jpg
The photographic standard since 1992. JPEG throws away detail your eye is least likely to miss, which is why a photograph saved as JPEG is a fraction of the size of the same image saved losslessly.
Good for
- Opens everywhere — no format is more widely supported
- Very small files for photographs and other continuous-tone images
- A quality dial, so you choose the trade against file size
Trade-offs
- Lossy: detail is discarded permanently, and re-saving repeatedly compounds it
- No transparency at all
- Sharp edges, flat colour and text pick up visible halos
image/jpeg
BMP .bmp
Microsoft's plain bitmap. It generally stores pixels with no compression at all, which makes it simple to read and very large on disk.
Good for
- Dead simple — every pixel stored literally
- No compression artefacts of any kind
- Reliably readable by old Windows software
Trade-offs
- Enormous files, often ten times a PNG of the same image
- Effectively unusable on the web
- Transparency support is inconsistent between readers
image/bmp
JPG and BMP side by side
| JPG | BMP | |
|---|---|---|
| Compression | Lossy | Uncompressed |
| Transparency | No | Limited — 32-bit variants only |
| Animation | No | No |
| Typically used for | Photographs, camera output, web images | Legacy Windows software, intermediate working files |
What changes when you convert JPG to BMP
Expect a very large file
BMP generally stores every pixel with no compression at all, so the result is often several times the size of the JPG it came from while looking exactly the same. It is worth choosing only for old Windows software that will not read anything else.
Camera data is removed by default
A JPG straight from a phone or camera carries EXIF metadata — model, settings, timestamp and, quite often, the GPS coordinates of where the photo was taken. The converted BMP is written without it, so a file you are about to share does not quietly carry your location. The orientation flag is read and applied to the pixels first, so the image will not come out sideways once the tag holding it is gone. If you need the metadata kept, there is a setting for it.
How the BMP is written
Our default is stored as plain uncompressed pixels, since that is essentially all BMP offers. The quality control on the converter moves this if you need to — the default aims to be indistinguishable from the source at a sensible file size, rather than to win a compression benchmark.
Quality cannot come back
JPG already discarded detail permanently, and BMP stores exactly what it is given. The result will be considerably larger while sounding identical to the JPG you started from — lossless preserves, it does not restore. That is still the right move if you are about to edit, because further saves will not degrade it again.
Other JPEG conversions
Other ways to get BMP
Worth reading next
Why your PNG is so much bigger than your JPEG
The same photograph can be 300 KB as a JPEG and 4 MB as a PNG. Here is what each format is actually doing, and how to tell which one your file wants to be.
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Where your transparent background went
Transparency is the property most often lost silently in a conversion — the file looks perfect until it lands on a coloured background and grows a white rectangle.
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