How to convert MP4 to MP3
- Click Choose files, or drop your MP4 files on the box.
- Keep MP3 and pick a quality.
- Wait a moment: each file is converted in your browser, with progress shown next to it.
- Click Download next to each finished file.
About MP4
MP4 is a video file. Its sound is usually AAC audio stored in the same file, next to the picture. Phone videos, screen recordings, camera clips, and videos you downloaded or exported from an editor are usually MP4.
Only the sound is kept: the video is left out, so the file gets much smaller. A 10-minute video gives an MP3 of about 14 MB at 192 kbps.
Quality and size
Choose 128 kbps for speech, 192 kbps (the default) for most music, or 320 kbps for the best quality. MP3 is lossy: converting can’t add quality the original didn’t have. The result is about 1.4 MB a minute at 192 kbps.
Private by design
Converters that upload your file keep a copy on someone else’s server, at least for a while. Here the conversion happens on your device, with your browser’s own audio decoders and an MP3 encoder that runs in the page. Nothing is uploaded, and it works on Windows, Mac, Linux and Chromebooks.
More converters
Need only part of the sound? Cut it with the audio trimmer.
