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Extract MP3 from MP4, Free Online Converter

Extract only the audio from MP4 videos like YouTube lectures or music videos and save it as MP3.

Your files are not uploaded to our server. All processing happens on your computer.

Drag and drop your MP4 file here, or click

MP4 files supported

MP4 vs. MP3: What's the Difference?

MP4: A File Containing Both Video and Audio

MP4 is a video format that contains both screen visuals and audio in one file. It's the most common video file used for uploading to YouTube or sharing.

MP3: A File Containing Only Audio

MP3 is a format that stores only audio without visuals. Since the video is removed, the file size is much lighter, and it can be played in any music app.

If you want to listen to lectures on your commute or save only the song from a music video, convert it to MP3. Removing the video reduces the file size by over 90%, saving storage space.

Safely Extract from Paid Lectures

Your files are not uploaded to any server. You can extract audio from sensitive files like ongoing lectures or personal videos without worry.

Extract audio instantly, skip the video

Most files are processed in seconds because only the audio portion is extracted, without re-processing the entire video.

Completely Free. No Limits.

There are no limits on the number of extractions or file size.

Original Audio Quality Preserved

The audio quality does not degrade because the sound is extracted directly from the video.

FAQ

Does converting to MP3 degrade audio quality?

No. Audio quality is not degraded because the sound is extracted directly from the video.

Can I extract audio from downloaded lecture videos?

Yes, any video in MP4 format is supported.

Can I process long videos over an hour?

Yes, there is no length limit. However, very large files may take longer depending on your device's specifications.

Can I create a ringtone with the extracted MP3?

Yes, it's just like a regular music file, so you can freely use it for ringtones, alarms, music app playback, or wherever you wish.

Does it work on smartphones?

Yes, it works on smartphone browsers like Chrome or Safari. However, for large videos, compressing on a PC is faster and more stable.

You can also create Shorts from lectures or interview videos.

Extract key summary clips from long lectures, or gather highlights from interview videos to create short content.

Free MP4 to MP3 Converter | Extract Audio from MP4 Online - Alphacut