MP4 to MP3
Save the sound from an MP4 video as an MP3. Runs in your browser on Windows, Mac, or Linux, with nothing to install.
Drop files to convert
See their format, then choose an output.
Any media file this browser’s engine can read. You can also drag in a folder. Several at once needs a free account.
How to convert MP4 to MP3 online
Open an MP4 and export its audio as an MP3. The MP4 to MP3 converter runs in your browser on a Windows PC, a Mac, or a Chromebook, so there is no program to download and the video is never uploaded.
Step 1
Choose your MP4Pick a file or drop it into the converter above.Step 2
Keep MP3MP3 is selected; choose another audio format if you need one.Step 3
Download the MP3Save the sound when the conversion finishes.
What to expect
- Supported inputs
- MP4 videos, including phone videos and screen recordings, and other readable video or audio files.
- What happens
- The video track is dropped and the audio is encoded as MP3. MP3 is selected first; you can switch to WAV, M4A, or another audio format.
- Limits
- The MP4 needs an audio track. Files are converted one at a time, and very long videos depend on your device's memory.
Private by design
Your video stays on your device
Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.
- No upload
- No signup
- No watermark
Questions
Open this page in Chrome, Edge, or Firefox, drop the MP4 in, and download the MP3. It runs in the browser, so there is nothing to install and the file stays on your PC.
No. The conversion runs in your browser with the same kind of encoder a desktop app would use, and the MP4 is never uploaded.
One at a time. When an MP3 is downloaded, drop the next MP4 onto the page.
No. The MP3 holds only the sound. Use Convert video if you want to keep the picture in another format.