MP4 to MP3
Convert MP4 video to MP3 audio online. Choose the audio quality. Your file never leaves your device.
Private by design: your files are processed inside your browser and are never uploaded to our server.
About MP4 to MP3
Save the audio from your own videos as MP3: lectures, interviews, voice notes and recordings. Choose the quality and convert several videos in one go.
How to use MP4 to MP3
- Step 1Select your file(s) or drag and drop them into the box.
- Step 2Choose the MP4 to MP3 settings you want.
- Step 3Click the button and download your result.
Questions & answers
Which MP3 quality should I choose?
192 kbps sounds great for music and speech. Use 128 kbps for smaller files or 320 kbps for the best quality.
Can I convert a YouTube link?
No. This tool works with video files on your device. Downloading from YouTube is against its terms.
Is MP4 to MP3 free?
Yes. Every tool on this site is free to use, with no signup, no watermark and no daily limit.
Are my files uploaded to a server?
No. Your files are processed inside your own browser on your device. They are never uploaded, so nobody else can see them.
Is there a file size limit?
There is no fixed limit. Because processing happens on your device, very large files depend on your phone or computer memory. Most files up to a few hundred MB work fine.
Why does it take a moment the first time?
The video engine (about 30 MB) downloads once the first time you use a video or audio tool. After that your browser keeps it, so next time it starts quickly.
Does it work on mobile?
Yes. It works in Chrome, Safari, Edge and Firefox on Android, iPhone, Windows and Mac.