Mixxx - The most powerful free DJ software in the world.
Serato DJ - Serato DJ is award winning, digital DJing software used by professionals across the globe.
VirtualDJ - Virtual DJ Software - MP3 and Video mix software for DJs
DJ Mixer Soft - DJ Mixer Professional is the best DJ mixing software for Mac and Windows, Support audio, karaoke and video mixing, automatic DJ mixing, one-click beat-matching, etc.
Traktor Pro - Flagship DJ software with four decks and a stunning range of creative features for maximum freedom in DJing.
Mixmeister - Create custom party mixes, burn CDs, or add special effects to MP3s with this line of DJ software for the novice and pro. Offers free trials and user community.