BMP and PNG both store an image without lossy compression, but only one of them opens everywhere. Filemorph converts BMP to PNG on-device, keeping full quality in a format modern apps actually support.

If a BMP needs to stay lossless — a diagram, a screenshot of tabular data, anything where JPG artifacts would be a problem — PNG is the modern equivalent. It is just as exact as BMP but is universally recognized by browsers, design tools and messaging apps in a way an old Windows bitmap is not.
Filemorph decodes the BMP with ImageIO and re-encodes every pixel exactly as PNG, which also applies PNG's compression to shrink the file without touching image quality.
In the app: Convert → To PNG.
PNG keeps the lossless quality BMP has while being far more widely supported and noticeably smaller on disk. Use PNG whenever the BMP needs to stay pixel-exact but also needs to open on a modern device or website.
Yes. Unlike web converters that upload your files to a server, Filemorph converts every file locally using Apple's frameworks. Nothing leaves your device, and it works with no internet connection. This conversion is in the free tier.
No. Both formats are lossless, so the pixels are identical — PNG just compresses the file smaller and is far more widely supported.
Yes, it is in Filemorph's free tier.
Usually, yes. PNG's compression typically shrinks an uncompressed BMP significantly while keeping every pixel exact.
Free, on-device, no upload. Plus 300+ more file operations.
Download on theApp Store