MP4 to MP3 Converter

Free MP4 to MP3 Converter

Pull the audio track out of MP4 videos and save it as MP3. Works on any MP4 your browser can play — from phone recordings to screen captures to downloaded videos. Choose your bitrate (128–320 kbps) and the MP3 downloads to your device. No upload required.

Drop your MP4 file here

or click to browse — converted in your browser, never uploaded

Your video is never uploaded. Audio extraction runs entirely in your browser. Privacy policy.

320 kbps minimizes quality loss.

About MP4 to MP3 Conversion

Pull the audio track out of MP4 videos and save it as MP3. Works on any MP4 your browser can play — from phone recordings to screen captures to downloaded videos. Choose your bitrate (128–320 kbps) and the MP3 downloads to your device. No upload required.

When you might convert MP4 to MP3

Note: only extract audio from MP4 files you own or have permission to use. This tool is for personal, educational, and authorized use.

Why SnipSound

Other video conversions

Frequently Asked Questions

How do I convert MP4 to MP3 online?
Drop your MP4 video onto the page and click Extract. The MP3 downloads to your device. Everything runs in your browser — nothing is uploaded.
Is my video uploaded?
No. All extraction happens entirely in your browser. Your MP4 file never leaves your device. See our privacy policy.
Why is the first extraction slower?
FFmpeg loads on first use (a ~25 MB WebAssembly module). After that, all subsequent extractions in the same browser session are fast.
Can I extract audio in a different format?
Yes — the output format dropdown supports WAV, OGG, FLAC, AAC, and M4A in addition to MP3.