About this conversion
BMP files are uncompressed and often far larger than necessary for sharing or web use. Converting to JPG applies efficient lossy compression tuned for photographic content, usually resulting in a dramatically smaller file.
Frequently asked questions
How much smaller will the JPG be?
Often 80-95% smaller than the source BMP, depending on image content and the quality setting chosen.
Will I notice a quality difference?
At quality 80-90 (the default range here), most photos show no visible difference. Very low quality settings can introduce visible compression artifacts.
What about transparency?
BMP as produced by most sources doesn’t carry transparency; if it did, JPG can’t represent it and it would be flattened onto white.