MP3Cut

MP3Cut is an online browser-based audio editing tool focused on trimming/cutting audio files. It lets you upload audio from your device or cloud services (like Google Drive/Dropbox) or from a URL, then select a time range using sliders to create a shorter output.

The tool supports many audio formats (over 300) and includes ringtone-oriented features like fade in/out and producing an iPhone ringtone output in a specific format and duration.

It also supports extracting audio from video and includes optional audio processing controls such as changing speed/volume/pitch and using an equalizer.