Convert
BMP to JPG Converter
Convert BMP files to JPG to make them small enough to email, upload and store. Conversion runs in your browser, and nothing is uploaded.
Your images never leave your device
How to use BMP to JPG
- Drop your BMP files on the page or pick them from your device.
- Wait while each file is converted to JPG on your device.
- Download the JPG files one by one, or all together as a zip.
Frequently asked questions
How much smaller will the JPG be?
Typically more than 90 percent smaller. A 36 MB BMP photo commonly lands between 2 and 5 MB as a JPG, depending on content and settings.
Is BMP to JPG lossless?
No. JPG compression discards some detail. If the image is a screenshot or diagram and you want no loss at all, convert to PNG instead.
Why do I have BMP files in the first place?
Older Windows software, scanners, some cameras and embedded systems, and the classic Paint program all produce BMP. It is simple for programs to write but wasteful in size.
Are my BMP files uploaded anywhere?
No. The conversion runs in your browser using WebAssembly, so your BMP files stay on your device. There is no signup, no watermark and no cost, and you can convert a whole batch and download it as a zip.
About BMP to JPG
BMP files are enormous because they usually store every pixel with no compression. A 12-megapixel BMP is about 36 MB, while the same picture as a JPG is typically 2 to 5 MB. BMPs turn up in screenshots from old Windows programs, scanner output, legacy software, embedded devices and the Paint program, and then run into upload limits and storage problems. Converting to JPG solves that at once, and nearly every site and app accepts JPG.
Show moreShow less
JPG is lossy, so some fine detail is discarded permanently, but at normal viewing size a photo looks the same. The saving is dramatic, usually 90 percent or more for photographs. BMP has no transparency, so there is nothing to fill in. Screenshots, diagrams or text that were captured as BMP can show faint noise around sharp edges after JPG compression; for those, convert to PNG, which is also much smaller than BMP and loses nothing.
BMP is normally uncompressed, so file size depends only on the pixel count; JPG is lossy, using discrete cosine transform compression. BMP has no transparency, so the JPG result is fully opaque and looks the same on any background. For scale, a 12-megapixel photo is typically about 36 MB as BMP and 2 to 5 MB as JPG. Compatibility: Every browser, phone, camera, editor, email client and upload form opens it, which is its main strength.