Convert MP4 to MP3 Online
Need MP3 instead of MP4? This free converter changes MP4 files into MP3 in seconds, right in your browser.
How to convert MP4 to MP3
- Upload your MP4 file. Drag it onto the box above or click to browse. Files up to 200 MB are accepted.
- Choose MP3 as the output. The target format is pre-selected on this page — just press “Convert now”.
- Download the result. Conversion runs on our own server and the download starts as soon as it is ready. Your files are deleted automatically.
Why convert MP4 to MP3?
MP4 is the universal video container, playable on virtually every device, browser, phone and smart TV. MP3 is the most compatible audio format ever made — plays on everything and keeps files small. That difference is exactly why converting between them is so common: MP3 is the better choice for music, podcasts, universal playback.
MP4 vs MP3: key differences
| MP4 | MP3 | |
|---|---|---|
| File type | lossy container | lossy |
| Typical use | streaming, social media, mobile playback, archiving everyday video | music, podcasts, universal playback |
| Compatibility | Near-universal support. Typically pairs H.264/H.265 video with AAC audio. | Universal support. Quality loss above ~128 kbps is minimal for most listeners. |
Tips for a clean MP4 to MP3 conversion
- Near-universal support. Typically pairs H.264/H.265 video with AAC audio.
- Use the highest-quality source MP4 you have — converting a compressed file again cannot restore lost detail.
- If you only need a smaller file, try a lower resolution or bitrate instead of a different format.
- Keep the original MP4 until you have checked the converted MP3 opens the way you expect.
Frequently asked questions
How do I convert MP4 to MP3?
Upload your MP4 file to the converter on this page, make sure MP3 is selected as the output format and click “Convert now”. When the conversion finishes the download starts automatically.
Is this MP4 to MP3 converter free?
Yes — it is completely free and needs no account. Files up to 200 MB are accepted, and heavy use is rate-limited so the service stays available for everyone.
Will converting MP4 to MP3 reduce quality?
MP3 uses lossy compression, so the converted file is re-encoded. Quality loss is minimal at sensible settings, but keep the original MP4 if you may need to convert again later.
What is a MP4 file?
MP4 is the universal video container, playable on virtually every device, browser, phone and smart TV. Its technical name is MPEG-4 Part 14 and it is typically used for streaming, social media, mobile playback, archiving everyday video.
What is a MP3 file?
MP3 is the most compatible audio format ever made — plays on everything and keeps files small. Its technical name is MPEG-1 Audio Layer III and it is typically used for music, podcasts, universal playback.
Can I convert MP4 to MP3 on my phone?
Yes. The converter runs in the browser on Android, iOS, Windows, macOS and Linux — no app installation is required.
Are my files kept on the server?
No. Uploaded files and converted results are deleted automatically a short time after the conversion finishes.