MP4 to MP3
Get the audio out of any MP4.
Screen recordings, phone videos, lectures, concert clips: keep just the sound. WebbWAV extracts the audio track from your MP4 and saves it in the format you want.
How to convert MP4 to MP3
- 01
Drop your MP4 video.
- 02
Choose MP3 (or WAV for editing) and a quality.
- 03
Trim to the part you need, then download.
MP4 to MP3
What to know before you convert
No re-uploading video
Video files are big, so WebbWAV converts them inside your browser whenever it can. Your video never leaves your device.
Only the audio you need
Open Edit & trim to cut a lecture down to one answer or a concert down to one song, with fades so it doesn't start abruptly.
Frequently asked questions
Does it work with phone videos?
Yes. iPhone and Android videos are MP4 or MOV; both work. On iPhone, tap Choose files and pick from Photos or Files.
Can I keep the original audio quality?
Choose WAV or FLAC to keep the video's audio exactly as it is, or MP3/M4A for smaller files.
Do my files get uploaded?
Usually not. Files up to 100 MB are converted on your own device with WebAssembly, so they never leave it. Larger files, or browsers that can't run the converter, use our servers; those files are deleted automatically after a short time.
What's the maximum file size?
Up to 500 MB per file and 20 files per batch by default. Files up to 100 MB are converted on your device.
Ready when you are.
Paste a link at the top of the page, or install WebbWAV and share videos straight from the YouTube app.