Convert video to MP3
Get a real MP3 out of any video. Browsers ship no MP3 encoder, so this runs in plain JavaScript — slower than other formats, but it gives you MP3 rather than something near it.
Result right hereDrop a video here, or click to choose
MP4 · MOV · MKV · WebM · audio · images · subtitles · ZIP
MP3 is the format that plays on everything: old car stereos, cheap players, anything with a USB port. That is why people ask for it by name.
There is no MP3 encoder in any browser — it was never part of the WebCodecs standard. So this page decodes the audio to raw samples and encodes them with a JavaScript encoder.
That route is slower than the other audio formats. Handing you an M4A instead and calling it done would be quicker, but it would not be the thing you asked for.
FAQ
Why is it slower than extracting M4A?
M4A is a straight copy of what is already there. MP3 has to be encoded from scratch in JavaScript, because the browser has no encoder for it.
What bitrate does it use?
192 kbps, which is transparent for speech and close to it for music.
Would M4A be just as good?
Technically better, and much faster. But if you need MP3 specifically, an M4A is not a substitute.
Is there a length limit?
None is set. Long audio needs more memory, and if your device runs out the page says so and offers a way forward.
Is anything uploaded?
No. Decoding and encoding both happen on your own device.