WaveShop VS Leapic Audio Editor

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.

Radium - Radium is a music editor with a new type of interface.

FL Studio - Image-Line's FL Studio, now on it's 12th version, is a well-known music production suite and the most popular beat processor on the market, due no doubt to its longevity. Read more about FL Studio.

SoundEngine - Freeware audio editor/recorder

Adobe Audition - Mix, edit, and create audio content in Adobe Audition CC with a comprehensive toolset that includes multitrack, waveform, and spectral display.