Converting BMP to JPG shrinks uncompressed bitmap files by 10–50× using lossy compression. A 6 MB BMP photo becomes a 300 KB JPG at quality 85 with no visible difference, making this the standard move whenever legacy BMP content needs to reach modern contexts.
Drag & drop image files here, or browse
Drop your BMP files here
Lossy compression introduces some artifacts at low quality settings. At quality 85+ on photographic content, the result is indistinguishable from the BMP. Transparency (where it existed unreliably in the BMP) is flattened to a background color. Quality settings in the converter let you balance size versus fidelity.
JPG is universally supported. Every browser, OS, camera, and image tool handles it.
BMP is the uncompressed Windows bitmap format from 1990. Files are huge because almost nothing is compressed, but the format is trivial to decode and supported by virtually every Windows utility, embedded system, and legacy tool. Useful as an interchange format when other options fail.
JPG (JPEG) is a 1992 lossy photo format that became the default way to store photographs on the web. It uses a discrete cosine transform plus quantization, tuned so that errors fall where human vision is least sensitive. No transparency, no animation, but excellent for photos at 70–90% quality.
For typical photographic content, 10–50× smaller at quality 85. A 6 MB BMP photo typically becomes 200–400 KB as JPG with no visible loss.
85 is a safe default for photos. 95 is nearly lossless but gives up most size savings. 75 is visibly compressed on careful inspection. Below 70, artifacts become obvious.
BMP is the uncompressed Windows bitmap format from 1990. Files are huge because almost nothing is compressed, but the format is trivial to decode and supported by virtually every Windows utility, embedded system, and legacy tool. Useful as an interchange format when other options fail.
JPG (JPEG) is a 1992 lossy photo format that became the default way to store photographs on the web. It uses a discrete cosine transform plus quantization, tuned so that errors fall where human vision is least sensitive. No transparency, no animation, but excellent for photos at 70–90% quality.
Yes. The converter runs entirely in your browser using WebAssembly. Your images are never uploaded, never sent to a server, and never leave your device.
There's no hard limit, but because everything runs in your browser you're bounded by available memory. Very large images (over a few hundred megapixels) can hit browser memory limits. Process in smaller batches if you run into issues.