Extract audio from MP4 to MP3 online
Files are not uploaded to server — local browser processing
Bulk processing up to 50 files (ZIP)Extracting audio from an MP4 video to MP3 format is an easy way to get the sound track from any video clip. MP3 is the most common audio format, supported by all devices and players.
Useful for saving music from videos, podcasts, audiobooks, or voiceovers. The converter works via FFmpeg.wasm entirely in your browser.
Frequently Asked Questions
The audio is converted at a bitrate of 192 kbps, which provides excellent quality for most tasks.
Yes, but for videos longer than 10 minutes, conversion can take a long time. We recommend videos under 100 MB.
The internet is only needed for the initial download of the FFmpeg.wasm library (~25 MB). After that, the conversion works offline.