Audacity is a free opensource audio editor utility which also cross platform.

Ardour is a hard disk recorder and digital audio workstation application.

Bitwig Studio is a multi-platform music-creation system for production, performance and DJing, with a focus on flexible editing tools and a super-fast workflo…

Qtractor is a hard disk recorder and digital audio workstation application for Linux.

Frinika is a free, complete music workstation software.

LMMS (formerly Linux MultiMedia Studio) is digital audio workstation software.

Ocenaudio is a cross-platform, easy to use, fast and functional audio editor that bundles a rich array of audio effects.

Renoise is a digital audio workstation (DAW) based upon the heritage and development of tracker software.

Tracktion is a digital audio software for recording and editing audio and MIDI.

energyXT is a music production software.