How to use the MP4 to MP3 converter
- Drop your MP4 files onto the box above, or click to choose them.
- Conversion to MP3 starts automatically, right on your device.
- Download each file, or all of them as a ZIP.
What are MP4 and MP3 files?
MP4 · MPEG-4 video
MP4 is the most common video format. Extracting the soundtrack to MP3 is the easiest way to keep the audio from a lecture, interview or music video.
MP3 · MPEG-1 Audio Layer III
MP3 is the most compatible audio format in the world. It plays on virtually every phone, car stereo, browser and media player.
Common questions about the MP4 to MP3 converter
Are my files uploaded to a server?
No. uqln runs the conversion inside your browser using JavaScript and WebAssembly. Your files never leave your device, which also means there's no upload wait and no size limit beyond your device's memory.
Is it really free?
Yes. There's no account, no watermark and no daily limit. Because the work happens on your device, it costs us almost nothing to run.
Can I convert many MP4 files at once?
Yes. Drop as many files as you like. They're converted one after another, and you can download them individually or all together as a ZIP.