Mixxx is free DJ software that gives you everything you need to perform live DJ mixes. Blend songs together with automatic BPM matching and remix on-the-fly with looping and hot cues. Whether you're a pro DJ or just getting started, Mixxx has you covered.

Mixxx works with ALSA, JACK, OSS and supports many popular DJ controllers.

KEY FEATURES
- Parallel or split scratchable waveform displays.
- MP3, OGG, WAVE, FLAC, and optional AAC (M4A) playback.
- WAVE, OGG, and optional MP3 recording.
- Fast, database-powered library.
- Crates and playlists for organizing your music.
- Reads iTunes, Traktor, and Rhythmbox libraries.
- Cross-platform - works on Windows, Mac OS X and Linux.
- Shoutcast and Icecast broadcasting.
- Support for many DJ MIDI and HID controllers out-of-the-box.
- Advanced MIDI scripting engine for maximum flexibility.
- Vinyl emulation with Serato, Traktor, and Mixvibes timecode support.
- Beat and key detection.
- ReplayGain volume normalization.
- Automatic crossfading with Auto DJ.
- Skinnable interface with several skins bundled.
- For a full list of features go to: http://mixxx.org/features