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
- Phone & screen recordings. Extract audio from MP4 phone recordings, screen captures, or video memos to share as MP3.
- Lecture & podcast prep. Pull the audio from MP4 lecture recordings, webinar captures, or video interviews for podcast-style listening.
- Music videos from your own footage. Capture a live music session as MP4? Extract just the audio to edit in a DAW.
- Audio descriptions for accessibility. Strip the audio from training or instructional MP4s to listen on the go.
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
- 100% browser-based. Other extractors upload your video to a server. We don't — your MP4 stays on your device.
- No file size limit. Most online converters cap at 100–500 MB. The only limit here is your device's memory.
- No sign-up, no ads, no watermarks.
- Multiple output formats. Switch the dropdown to export as WAV, OGG, FLAC, AAC, or M4A instead of MP3.
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.