Shotcut

Shotcut is a free, open-source, cross-platform multimedia editor supporting macOS. While it excels at multi-format video editing, it also provides audio editing features like waveform visualization, multi-channel mixing, and filter-based manipulations. Users can apply effects, correct volume levels, and export in various formats. Its timeline-based approach helps with simple layering of audio tracks, and it supports plug-ins for more advanced tasks. Ideal for those seeking a zero-cost solution for both audio and video editing in a straightforward interface on Mac.