Choose an MP4
Select the video stored on your computer.
Convert MP4 to MP3
Extract the audio from an MP4 video and save it as a widely compatible MP3. Processing happens locally on your computer.
How it works
Convert locally
Your browser extracts and encodes the audio without uploading the source.
Download the MP3
Save the finished audio file to your device.
Frequently asked questions
Is my MP4 uploaded?
No. The selected file and result remain on your device during conversion.
Does converting change the video?
No. The tool reads the video and creates a separate MP3 file.
Will the MP3 include every audio track?
The first usable audio track is converted.
Can I use this on a phone?
A separate Media Tools App is coming soon because browser conversion is less reliable on phones.