BMP to PNG — Compress Old Bitmaps Without Quality Loss
Convert bulky uncompressed BMP files to PNG — same pixels, but with lossless compression that typically shrinks the file 3-10×. Perfect for archiving old screenshots and legacy graphics.
Lossless, so nothing changes visually
PNG uses lossless compression: every pixel from the BMP is preserved exactly, just stored more efficiently.
Common with old exports
Older Windows tools and some embedded devices output BMP. Converting to PNG makes them usable in modern workflows without ballooning storage.
Frequently Asked Questions
Is any quality lost?
None. PNG is fully lossless.
Will the file be smaller?
Almost always yes. A 6 MB BMP often becomes a 500 KB - 2 MB PNG.
Does it keep transparency?
Standard BMPs are opaque, so the PNG is too.