Convert BMP to JPG
BMP stores pixels raw, so a bitmap of any real size is enormous. JPEG compression brings a 48 MB bitmap down to a couple of megabytes, and encoding here uses MozJPEG so the result is around 10% smaller than a conventional JPEG export at the same quality.
Best for: Photographic bitmaps that need to become ordinary, shareable files.
What to know
- The source is uncompressed, so there is no existing lossy damage — this is a clean first-generation encode.
- For diagrams, screenshots or anything containing text, PNG or lossless WebP will look far better than JPEG.
About BMP
Windows' uncompressed bitmap format. Essentially a raw pixel dump with a header.
- Usually no compression whatsoever — a 4000x3000 image is around 48 MB.
- Poor support outside Windows.
- No standard metadata support.
- Support:
- Most browsers, though it is rarely used on the web.
- Transparency:
- Inconsistent; usually absent.
About JPEG
The 1992 workhorse of digital photography, and still what almost every camera and phone writes by default.
- Universally supported by anything that can display an image at all.
- Extremely fast to decode, with hardware paths on most devices.
- Safe for print workflows and old software that rejects newer formats.
- Support:
- Every browser ever shipped.
- Transparency:
- None.
Frequently asked questions
- How much smaller will my BMP become?
- Usually 95-99%. BMP applies no compression at all, so almost any encoding is a massive improvement.
Related conversions
Converting from something else? Convert any image to JPEG