Convert MP4 to MP3
Take the sound out of a video and keep it as an MP3 that plays anywhere — in the car, on a phone, in any music app. The video is read on your own device and never uploaded, however long it is.
- Processed on your device
- No upload, no waiting
- No signup, no watermark
How it works
Add your video
Drop an MP4 — or a MOV, MKV, WEBM, AVI, FLV or WMV file. It is opened on your device, and its length and sound track are shown straight away.
Choose the quality
192 kbps suits music, 128 kbps is plenty for speech, and 320 kbps keeps everything the video had.
Download the MP3
One file, named after the video, ready for any player.
Frequently asked questions
Is my video uploaded?
No. The video is decoded and the MP3 written by your own browser, so nothing is sent anywhere — no upload wait, no copy of your file on someone's server, and it works on a plane with the Wi-Fi off.
Which bitrate should I choose?
192 kbps is the sensible default: close to transparent for music at about 1.4 MB a minute. Take 128 kbps for lectures, podcasts and anything spoken, and 320 kbps when you want the largest, safest file — though an MP3 can never be better than the sound already in the video.
Can I convert a two-hour film?
Yes. Only the sound track is decoded, so a long film converts at many times real speed and uses very little memory. The progress bar shows how far along it is, and you can stop it at any point.
What if the video has no sound?
You are told so rather than handed a silent file. Some screen recordings and camera clips genuinely have no sound track at all.
Which video formats work?
MP4, M4V, MOV, MKV, WEBM, AVI, FLV, WMV, MPEG and MPEG-TS, including old camera and Flash files whose sound is stored as AC-3, Windows Media Audio, PCM or MP2 — all of it is decoded here and written out as MP3.
Would a lossless format be better?
If you want to edit the sound later, choose WAV or M4A in Extract Audio: MP3 re-compresses what is already compressed, which is fine for listening and less good for editing. For listening, MP3 is the one format every device plays.
Good to know: MP3 supports up to two channels, so 5.1 surround sound is folded down to stereo. A copy-protected film (a DVD rip with its protection intact, or a downloaded rental) cannot be opened by any browser tool.