Wavosaur is a free audio editor with VST support and many features for editing
Server 1 Official Download
MP3 editor to join,cut,split MP3,support prelisten and split by time and section
Audacity is a free, easy-to-use audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems.
Free MP3 Cutter Joiner consists of a free MP3 Cutter and a free MP3 Joiner
Mix your MP3 like a DJ with an automatic beat matching algorithm.
This utility will record, arrange, edit, and render multi-track waveform audio