Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
TwistedWave - TwistedWave is one of the unique audio editors that allow you to edit your music file online without any installation.
Tenacity - Tenacity is an easy-to-use, privacy-friendly, FLOSS, cross-platform multi-track audio editor/recorder for Windows, macOS, Linux and other operating systems.
Radium - Radium is a music editor with a new type of interface.
AudioMass - A full-featured web based audio editor 🎶
Leapic Audio Editor - Leapic Audio Editor is a all-in-one audio editor, converter, recorder, player, splitter and joiner.