Convert MP4 to MP3
Extract the audio from any video and download it as MP3, free and with nothing to install. Everything runs entirely in your browser, so your file is never sent to a server.
Drag and drop a video here, or click to choose a file
MP4, MOV, WebM, MKV, AVI — up to 500 MB. Nothing is sent to a server.
Extract the audio from a video, with nothing to install
Grab the soundtrack from an MP4, MOV or WebM video in seconds. The file is processed locally in your browser: no upload, no sign-up, no server limit.
Handy for pulling music, a podcast, an interview or a voice-over out of a video, then reusing it wherever you want.
Frequently asked questions
Are my files uploaded to a server?
No. Audio extraction runs entirely in your browser thanks to ffmpeg.wasm. Your file never leaves your device.
Which video formats can I convert?
MP4, MOV, WebM, MKV and AVI. The output is a standard MP3 file that plays on any device.
What is the quality of the extracted audio?
The audio is re-encoded to MP3 at 192 kbps, a good balance between quality and file size.
Is the tool free?
Yes, audio extraction is completely free with no sign-up. Voxdub also offers an online dubbing studio, with a 7-day free trial.
Working with voice-over?
Voxdub helps you transcribe, translate and dub your videos online — rythmo band, subtitles and multilingual voice-over in a single studio.
Try Voxdub for free7-day free trial · no install · rated 4.5/5 on Google