Trim M4A
Drop an M4A, set the start and end, and keep just that part.
Your file stays on your device. Nothing is uploaded.
Trim M4A in three steps
Drop your M4A
Up to 500 MB.
Set the start and end
Like 1:05 to 1:35.
Trim and download
Same format as the file you dropped.
A clean cut
M4A is AAC audio in an MP4-style file, Apple's usual audio format (Voice Memos, GarageBand, iTunes). It sounds a little better than MP3 at the same size.
Exact mode, the default, cuts on the moment you set. Fast mode copies the audio without re-encoding and is quicker on long files, but can land a fraction of a second off.
Leave half a second before the first word so the clip doesn't start mid-breath.
Frequently
Asked Questions
Does trimming change the quality?
Exact mode re-encodes once; fast mode doesn't change it at all.
Can I make a ringtone?
Yes: cut the part you want and download it.
Is my file uploaded?
No. It's processed in your browser, on your own device, and never leaves it.