Sparseimage
Sparseimage Compactor v.1.0
Sparseimage Compactor is an AppleScript application (applet/droplet) to run the UNIX shell script 'hdiutil compact' to compress sparse disk images.
TransMac v.12.2
TransMac for Windows can open Mac HFS and APFS format disk drives, flash drives, floppy, CD/DVD media, dmg, dmgpart, sparsebundle and sparseimage files. Features: create, compress and split Mac dmg disk images, CD/DVD burner.