Why extract MP3 from MP4
Sometimes you only need the audio: a recorded lecture, an interview, a speech, your own music video or a podcast recorded on camera. MP3 is small, plays on every phone, car stereo and media player, and is perfect for listening on the go. Converting MP4 to MP3 drops the video and keeps the sound.
Quality and size
The audio in MP4 files is usually AAC, which gets re-encoded to MP3. For speech and most music, the difference is not audible. The resulting MP3 is much smaller than the video because the picture is removed. Only convert content you own or are allowed to use.
How to convert
Drop the MP4 above, MP3 is preselected, click “Convert” and download. FFmpeg extracts and encodes the audio right in your browser – the video is never uploaded.