OctoolyWhy convert MP4 to MP3?
Keep only the sound: a lecture, a podcast recorded on video or a song from your own recording. The MP3 is much smaller than the video and plays on any phone or car stereo.
How to convert MP4 to MP3
- Drop your MP4 file in the box above, or click to choose it.
- Check the options and click the button. Your browser does the conversion.
- Download your MP3. Nothing was uploaded.
What is MP4?
MP4 with H.264 video and AAC audio is the most compatible video format there is. It plays on phones, TVs, browsers, WhatsApp, Instagram and every video editor.
What is MP3?
MP3 is the universal audio format: it plays on every phone, car stereo, smart speaker and music app.
Frequently asked questions
Is it really free?
Yes. No sign-up, no watermark and no limit on how many files you convert. The site is paid for by ads.
Is my video uploaded anywhere?
No. The conversion runs inside your browser, on your own computer. The file never leaves your device, not even to our servers.
Is there a file size limit?
There is no upload limit, because nothing is uploaded. Very large files (several GB) depend on your computer's memory.
Will I lose quality?
The audio is encoded as a high-quality MP3, good for music and voice alike.
Which browsers work?
Google Chrome and Microsoft Edge on a computer work best. They have the video encoders the converter needs.