How to use the BMP to JPG converter
- Add the BMP files, or drag in the folder an old program saved them to.
- Pick a quality. The default of 88 suits photos and scans; around 80 is fine for quick sharing.
- Set a width under More settings if the images are larger than you need.
- Convert and download the JPGs singly or as a ZIP.
How much space you get back
A full HD frame of 1920 by 1080 pixels takes roughly 6 MB as an uncompressed bitmap. As a JPG at the default quality it typically lands somewhere between 200 and 600 KB, which is the difference between a file that bounces off an attachment limit and one that sends instantly.
Legacy capture cards, older scanners, Windows Paint and lab or factory software are the usual sources of BMP. Their output converts here without installing anything.
When JPG is not the right target
Photos, scans of paper and video frames suit JPG well. Screenshots full of small text or flat interface colours can pick up smudges around letters; for those, a lossless PNG is often just as small and keeps the text sharp.
Bitmaps with an alpha channel are placed on the background colour chosen under More settings, because JPG stores no transparency.
Big scans and old archives
Paper scanned straight to BMP at high resolution and in full colour is enormous. Scaling them to somewhere between 1600 and 2500 pixels wide keeps every line of text legible and cuts the JPG down to a fraction.
Drop a whole archive folder at once: the bitmaps are processed locally, several in parallel, with no upload and no cap on how many there are.
Questions
Which BMP files can be read?
Anything your browser decodes: 1-bit through 32-bit bitmaps, RLE-compressed ones included. Files ending in .dib are accepted too.
Is the JPG progressive?
Yes. The JPG is saved progressively, with Huffman tables optimised by MozJPEG.