Free MP3 Cutter - Free MP3 Cutter helps you slice off any unnecessary parts of an MP3 track you don't want.
Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
MP3 Splitter & Joiner - MP3 Splitter & Joiner is a MP3 audio editor.
Oceanaudio - Ocenaudio is a cross-platform, easy to use, fast and functional audio editor.
MP3 Trimmer - With MP3 Trimmer - the most easy to use MP3 editor for Macintosh - you can edit MP3 files, join MP3...
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.