AudioMass is a free, open source, web-based Audio and Waveform Editor.
It runs entirely in the browser with no backend and no plugins required!


Tips:
Please keep in mind that most key shortcuts rely on the Shift + key combo. (eg Shift+Z for undo, Shift+C copy, Shift+X cut... etc )

You can load any type of audio your browser supports and perform operations such as fade in, cut, trim, change the volume, and apply a plethora of audio effects.

Check out the codebase on Github