How to Convert BMP to JPG
Stuck with an oversized BMP file you cannot share or upload? Converting BMP to JPG can reduce the file size by over 90% while keeping the image looking great. This converter works entirely in your browser -- no uploading, no waiting on servers, and no file size limits. Drop your BMP files above and download compact JPGs instantly.
BMP (Bitmap) is one of the oldest image formats still in use, dating back to early versions of Windows. It stores pixel data with minimal or no compression, which means a simple 1920x1080 screenshot saved as BMP can be 6MB or more -- the same image as a JPG might be 200-400KB. BMP was designed when storage was cheap relative to processing power, so it made sense to skip compression. Today, that tradeoff no longer holds, and there are very few reasons to keep images in BMP format.
BMP vs JPG: What's the Difference?
| Feature | BMP | JPG |
|---|---|---|
| Compression | None or minimal (RLE) | Lossy (DCT-based, adjustable) |
| Typical file size | Huge (raw pixel data) | Small (10-50x smaller than BMP) |
| Quality | Pixel-perfect (no compression) | Near-perfect at high quality settings |
| Metadata support | Minimal (no EXIF, no ICC profiles) | Rich (EXIF, ICC, GPS, camera data) |
| Transparency | Limited (32-bit BMP only) | Not supported |
| Best use case | Legacy Windows apps, raw pixel access | Photos, web, email, documents, everything |
BMP is essentially raw pixel data with a simple header. It does not compress, does not store metadata, and is not supported by many modern applications outside Windows. Converting to JPG gives you a universally compatible file at a dramatically smaller size, with the only tradeoff being the lossy compression -- which at quality 85+ is invisible for photographs and screenshots.
How to Convert BMP to JPG
- Drop or click to upload your BMP files above.
- Conversion happens instantly in your browser -- the BMP pixels are compressed to JPG locally.
- Download each JPG individually or download all files as a ZIP bundle.
Frequently Asked Questions
Why are BMP files so large?
BMP files are large because they store every pixel's color value without compression. A 1920x1080 image at 24-bit color uses exactly 1920 x 1080 x 3 bytes = roughly 6.2MB of raw pixel data, plus a small header. There is no compression algorithm reducing that data, which is why BMP files are so much larger than other formats.
What is BMP format?
BMP (Bitmap Image File) is a raster graphics format developed by Microsoft for Windows. It stores images as a grid of pixels with minimal overhead. It was the default format for Windows Paint and other early Windows applications. While still supported by Windows, it has been largely superseded by PNG and JPG for everyday use.
Does anyone still use BMP?
BMP is still encountered in legacy Windows applications, embedded systems, some industrial software, and occasionally in screenshots from older Windows tools. Some game modding communities also use BMP for texture files. For most people, BMP files are something you receive rather than choose to create.
How much smaller is JPG than BMP?
At typical quality settings (80-90), JPG files are 10 to 50 times smaller than the equivalent BMP. A 6MB BMP screenshot might compress to 150-300KB as a JPG. For photographs with lots of detail and color variation, the compression ratio is even more impressive.
Will I lose quality converting BMP to JPG?
JPG uses lossy compression, so technically some data is discarded. At quality 85 or above, the difference between the original BMP and the JPG output is virtually invisible to the naked eye. The massive file size reduction (often 95%+) makes this an excellent tradeoff for any sharing or storage purpose.