Traktor Pro - Flagship DJ software with four decks and a stunning range of creative features for maximum freedom in DJing.
Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
Mixxx - The most powerful free DJ software in the world.
Oceanaudio - Ocenaudio is a cross-platform, easy to use, fast and functional audio editor.
VirtualDJ - Virtual DJ Software - MP3 and Video mix software for DJs
GoldWave - GoldWave. Digital Audio Editing Software. Record • Restore • Convert • Analyze. Fully loaded to do everything from the simplest recording and editing to the most sophisticated audio processing, restoration, enhancements, analysis, and conversions.