Letter: Z
- z88dk - A Z80 cross compiler
- zeroinstall-injector - The Zero Install Injector (0launch)
- zile - Zile Is Lossy Emacs
- zope - Web application server for flexible content management applications
- zziplib - Lightweight library to easily extract data from zip files
- zziplib-devel - Development files for the zziplib library