JN Soundboard - An open-source hotkey soundboard program
iJingle - Instant playback of jingles, sound effects and music, right from your smartphone or tablet.
Soundboard Studio - Soundboard Studio lets you take your podcast, live show, gig or performance to the next level.
Jingle Palette - Jingle Palette application was designed to be an instant jingle player for radio broadcast studios.
Soundplant - Play sound files with the computer keyboard
qwertyGO! - With qwertyGO! you are able to trigger sounds and songs with your computer-keyboard or midi-device.