Convert JPG images to BMP online for free. Upload one file or many, choose the quality and maximum size, then download the BMP results one by one or all together in a ZIP. No sign-up needed.
JPG (also written JPEG) is the most widely used format for photographs. It uses lossy compression, which keeps files small by discarding fine detail the eye is unlikely to miss. It does not support transparency or animation, and virtually every device, browser and app can open it.
More JPG conversionsBMP is a simple image format from Windows that usually stores pixels with little or no compression, so files are large compared with JPG, PNG or WebP. It is rarely used on the web, and converting a BMP is the easiest way to make it small enough to share.
More BMP conversions| Feature | JPG | BMP |
|---|---|---|
| Full name | Joint Photographic Experts Group | Bitmap |
| Compression | Lossy | Usually uncompressed |
| Transparency | No | No |
| Animation | No | No |
| Introduced | 1992 | 1990 |
| Developed by | Joint Photographic Experts Group | Microsoft |
| Best for | Photographs and images shared anywhere | Legacy Windows software |
Click Select File or drop your JPG file onto the upload box. Pick the quality and maximum size, and the converted BMP appears in the list below with a download button. You can add many files at once and download them together as a ZIP.
Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.
Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.
For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.