BMP (Bitmap) is an uncompressed raster image format developed by Microsoft. It stores raw pixel data with no compression, resulting in large file sizes.
BMP is required by some older Windows applications, certain hardware devices, and legacy software that does not accept modern formats.
No. BMP is uncompressed, so the conversion is lossless and the image quality is fully preserved.
Yes. Preview on macOS can open BMP files. Most image editors including GIMP and Photoshop also support BMP.
Standard BMP does not support transparency. BMP with 32-bit colour depth can store an alpha channel, but support varies by application.
BMP supports very high resolutions, but file sizes grow quickly since there is no compression. A 4000x3000 BMP is approximately 34 MB.
No. BMP files are very large and not supported by all browsers. Use JPG, PNG, or WEBP for web images.