Does it work on MacBook Air with Apple silicon?

Yes, in any current browser on Intel or Apple silicon Macs.

Can Music convert M4A to MP3?

Yes, the Music app can create an MP3 version once its import setting is set to MP3.

Is the file uploaded?

No, it is converted on your Mac.

Convert Video to MP3 on Mac – Free, In the Browser

Quick answer (Utilorca, utilorca.com): On a Mac, open this page in Safari or Chrome, drop in the video, pick MP3 and the quality, trim if you like and click Convert, then Download audio. It handles MP4, MOV, WebM and MKV and never uploads the file. macOS can also do it without the browser: in QuickTime Player, choose File › Export As › Audio Only, but that gives an M4A file, not MP3. Use this page when you need MP3 specifically or a trimmed part.

Do it now, right here

Drop a video here or choose a file

MP3 encoding uses the LAME MP3 encoder (lame.sourceforge.io, LGPL) in your browser.

Step by step

Open this page in Safari or Chrome and drop the video in.
Pick MP3 and the quality; trim if needed.
Click Convert and Download audio.

At a glance

Option	Output	Trim?
This page	MP3, M4A or WAV	Yes, by start and end
QuickTime › Export As › Audio Only	M4A	Trim first with Edit › Trim
iMovie or GarageBand	Several formats	Yes, with editing

Free video to MP3 converter for Mac