MP4 to MP3
Extract the audio track from an MP4, MOV or WebM video and save it as an MP3. Choose the bitrate and download — the video is processed in your browser and never uploaded.
Your files never leave your device.
Good to know: Works with videos your browser can play (MP4/H.264 + AAC, WebM, and MOV in Safari). Very long videos need a lot of memory because the audio is decoded in full before encoding.
How to use the MP4 to MP3
- 1Choose a video file.
- 2Pick the MP3 bitrate (192 kbps is a good default) and whether to trim the start or end.
- 3Click Convert and download the MP3.
What is the MP4 to MP3?
The browser decodes the video’s audio track and a LAME-based MP3 encoder compresses it, running in a background worker so the page stays responsive.
128 kbps is fine for speech and podcasts, 192 kbps for most music, and 320 kbps if you want the highest MP3 quality.
Frequently asked questions
Can I convert YouTube videos?
Only files you have on your device. Downloading videos from YouTube is against its terms unless the creator allows it.
Does converting improve the audio quality?
No. MP3 is lossy, so choose a bitrate at least as high as the source (videos commonly use 128–256 kbps AAC).
Is the MP4 to MP3 free and private?
Yes. The MP4 to MP3 is free, needs no account, and processes your files entirely in your browser. Files are never uploaded to a server or stored.