Trim an Audio File on Your Mac
Trim Audio cuts a song or recording to just the part you want, which is handy for ringtones, clips and removing dead air. Set the start and end on the waveform or with the time fields, play the selection to check it, and add a fade in or fade out of 0.5 to 10 seconds. It opens MP3, M4A, WAV, FLAC, AIFF and more.
How to use Trim Audio
Open Trim Audio and drop an audio file.
Set the start and end points and play the selection.
Turn on Fade in or Fade out and choose their length if you want.
Click Trim to save the new file to Downloads.
Questions about Trim Audio
How do I cut an MP3 on Mac?
Drop the MP3 into Trim Audio, set the start and end, and click Trim. Your original file is not changed.
Can I add a fade out at the end?
Yes. Turn on Fade out and pick a length between 0.5 and 10 seconds. Fade in works the same way at the start.
What format is the trimmed file saved in?
With FFmpeg installed, the trimmed file keeps the original format. Without it, files are saved as M4A (AAC).
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