This is a list of software that I find to be useful. For the category, see Useful Software.
Audio
Composing
Editing
Playing
Communication
Email
File Transfer
Remote Management
Technical
Web Browser
Compression
Database
Documents
Comparing
Editing
Viewing
Emulation
Graphics
Creating
Fonts
Manipulating
Vector
Viewing
Maintenance
Optical Discs
Burning
Emulating
Imaging
Playing
Ripping
Programming
Security
Video
Creating
Converting
Downloading
Editing
Viewing