Convert BMP to JPG

Convert BMP to JPG online, free and 100% in your browser. No upload, no signup. All the work happens on your device, so files can be as large as it can handle.

How to convert an image

  1. Drop or pick your BMP file, or paste it with Ctrl/⌘+V.
  2. JPG is already selected as the target; tune the quality slider if you like (default 82).
  3. Convert, compare the before/after, and save, all on your device.

Why convert to this format?

BMP is an uncompressed bitmap that produces very large files, fine for editing, wasteful for sharing. JPEG is the universal lossy photo format, small and readable everywhere, but with no transparency.

OptImg runs the same high-quality engines desktop tools use, so you get desktop-grade JPG output at a sensible default (quality 82), adjustable at any time, without ever uploading your image.

Your BMP is decoded, re-encoded to JPG and handed straight back, ready to save, all in an instant on your device: no server sees a single byte, which is why there's no queue and files can be as large as your device can handle.

Frequently asked questions

Is my BMP uploaded to a server?
The BMP-to-JPG conversion runs at native speed entirely in your browser: nothing is uploaded, your file never leaves your device, there is no queue, and no size limit beyond your device's memory.
Will converting BMP to JPG lose quality?
JPG is lossy, tuned to a visually transparent default (quality 82) that you can raise or lower with the slider. If the conversion can't produce a smaller file than your original, we hand the original back instead.
Is the BMP to JPG converter free?
Yes: completely free, with no signup, no watermark and no cap on how many files you convert. There is nothing to install; it runs in your browser.