AudioMass - A full-featured web based audio editor 🎶
Virtual Audio Cable - Ever wanted to record your speaker output? (loopback) This is for you.
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.
Loopback by RogueAmoeba - Get all the power of a high-end studio mixing board, right inside your Mac!
Wavosaur - WAVOSAUR is a free audio editor for Windows with VST plugins support. The program is ASIO compatible, can do loop points edition, auto-trim, noise removal.
JACK Audio Connection Kit - JACK Audio Connection Kit|Home