Offline ConverterConvert MP4 to MP3 on Mac
Turn MP4 Video files into MP3 Audio right on your Mac — fully offline. No uploads, no watermark, no size limit. Drag in one file or a whole folder and convert in seconds, accelerated for Apple Silicon.
How to convert MP4 to MP3 on a Mac
Open Offline Converter for Mac and drag your MP4 file (or many) into the window.
Choose MP3 as the output format and adjust quality or size if you need to.
Click Convert — the MP3 file is saved straight to your Mac. Done, offline.
Why convert MP4 to MP3 locally
Your files stay private
Your MP4 files never get uploaded. Everything is processed on-device, so sensitive photos and documents stay yours.
No watermark, no limits
Convert as many MP4 files to MP3 as you want — no watermark, no size cap, no daily quota.
Fast on Apple Silicon
Conversion is hardware-accelerated and runs at the speed of your SSD, even for large batches.
About MP4 and MP3
MP4 Video. MP4 Video is a common video format. MP3 Audio. MP3 Audio is a widely supported video format.
MP4 to MP3 — FAQ
Is converting MP4 to MP3 free?
The 3-day trial converts MP4 Video to MP3 Audio with no watermark, no size limit and nothing uploaded. After that the app is $29.99 once — not a subscription.
Do my MP4 files get uploaded?
No. The conversion happens entirely on your Mac. Your MP4 files never leave your device — it even works offline.
Can I convert many MP4 files at once?
Yes. Drop a whole folder of MP4 files and convert them all to MP3 in a single batch.
Convert MP4 to MP3 on Mac
Free 3-day trial, then $29.99 once · macOS 11+ · Nothing leaves your device