This test suite was grabbed from http://wvnvaxa.wvnet.edu/vmswww/bmp.html.
| BMP | PNG | |
|---|---|---|
| 1 bit (2 color) |  |  | 
| 4 bit |  |  | 
| 8 bit |  |  | 
| 16 bit |  |  | 
| 24 bit |  |  | 
| 32 bit |  |  | 
| 4 bit compressed |  |  | 
| 8 bit compressed |  |  | 
| 16 bit 555 bitfield |  |  | 
| 16 bit 565 bitfield |  |  | 
| 32 bit 888 bitfield |  |  | 
| 32 bit 888 bitfield version 4 |  |  | 
| 32 bit version 5 |  |  | 
| 32 bit transparent version 4 |  |  | 
Note that as of December 2005, Mozilla and Internet Explorer do not support transparent BMP images.
The images (except for the last three and the OS/2 version 2 image) are from Jason Summer's BMP Suite.