Convert JPG to BMP
JPG (JPEG) is the most common photo format, using lossy compression for small file sizes. BMP is the format of choice for legacy Windows software and raw pixel data, which is why it is the destination here. Worth knowing before you start: BMP is lossless, so it preserves exactly the pixels that came out of the JPG file. It cannot restore detail the JPG encoder already discarded, and the file will usually get larger, not smaller. The conversion runs entirely in your browser: there is no upload, no file size limit and no watermark on the result.
Drop your JPG files below and download BMP in seconds. Free, unlimited and completely private: the conversion runs inside your browser, so your files never leave your device and are never uploaded to a server.
No upload. Works with your network switched off. Check it yourself, or read what actually happens to your file.
Why convert JPG to BMP?
JPG has been the default photo format since the nineties and opens everywhere, from ancient office software to modern phones. Its lossy compression shrinks photos dramatically while keeping them looking good at normal viewing sizes. It cannot store transparency, so transparent areas are filled with a solid background.
BMP stores pixels with little or no compression, which makes files huge but trivially simple to read. It is mostly seen in legacy Windows workflows, screenshots from older tools and some scientific software. Converting to a compressed format usually shrinks a BMP by 90 percent or more.
JPG vs BMP at a glance
| JPG | BMP | |
|---|---|---|
| Full name | JPEG image | Bitmap image |
| Compression | Lossy | Uncompressed |
| Transparency | No | No |
| Best for | Photos and general web images | Legacy Windows software and raw pixel data |
What changes when you convert JPG to BMP
| What happens | |
|---|---|
| Image quality | Unchanged from here on. BMP is lossless, so it preserves exactly the pixels decoded from the JPG file. It cannot restore what the JPG encoder already discarded. |
| Transparency | JPG has no alpha channel, so there is no transparency to lose. |
| EXIF and GPS | Removed. The conversion goes through a pixel buffer, so camera data and location are not carried into the BMP file. |
| Colour profile | Not carried across. The image is handled in sRGB, which is right for the web and wrong for colour-managed print work. |
| Animation | Not applicable. JPG files here are single images. |
| File size | Much larger. A 24 bit BMP costs three bytes per pixel regardless of content, so the file size is fixed by the dimensions alone. |
How to convert JPG to BMP
- Drop one or more JPG files into the box above, or click to browse.
- ImageConvert converts each file to BMP right on your device.
- Download a single file, or grab everything at once as a zip.
Frequently asked questions
What is a JPG file?
JPG (JPEG) is the most common photo format, using lossy compression for small file sizes.
What is a BMP file?
BMP is an uncompressed Windows bitmap that keeps full pixel detail at a large file size.
Is it free to convert JPG to BMP?
Yes. There are no limits, no watermarks and no account needed. Convert as many JPG files as you like.
Are my files private?
Completely. Your JPG files never leave your browser and are never uploaded to a server, so your images stay on your device.