GoFileKit

MP4 to MP3 Converter

Extract audio from MP4 videos and save as MP3. Perfect for pulling music, podcasts, or dialogue from video files. For more video formats or audio output options, try the Audio Converter.

or drop MP4 video here

MP4, M4V, MOV, WebM, MKV, AVI

Processing runs in your browser and can be slow on large files. The video track is removed and only audio is saved.

How to use the mp4 to mp3 converter

  1. Drop an MP4 video into the box, or click to choose one.
  2. Choose the MP3 bitrate. 192 kbps is recommended for music, 128 kbps for voice.
  3. Click Convert, wait for the progress bar, then Download your MP3.

Why extract audio from video?

Extracting audio from MP4 videos is useful for creating podcasts, saving music from videos, or listening to audio without the video track. MP3 files are much smaller than MP4 and play on every device.

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Frequently asked questions

How do I extract audio from MP4?

Drop your MP4 video file, choose the MP3 bitrate, and click Convert. The tool extracts only the audio track and saves it as an MP3 file.

Which bitrate should I choose?

192 kbps is a good balance between quality and file size for most music and podcasts. Use 128 kbps for smaller files or 320 kbps for maximum quality.

Can I convert other video formats to MP3?

Yes. This tool works with MP4, MOV, WebM, MKV, and AVI. It extracts the audio track from any video. For more audio formats, try the <a href="/tools/audio-converter">Audio Converter</a>.

Are my files uploaded to a server?

No. Conversion runs entirely in your browser with ffmpeg compiled to WebAssembly. The video never leaves your device.

Why is it slow?

Browser-based encoding is slower than desktop apps because it uses a single CPU thread. A 5 minute video can take 2 to 3 minutes. Audio extraction is faster than video conversion.

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