GetConvert MP4 to MP3
Pull the soundtrack out of any MP4 video and save it as an MP3, in seconds and in your browser. Great for talks, interviews, lectures and music videos. Nothing is uploaded.
How to convert MP4 to MP3
Drop your MP4
Add the video. It stays on your device.
Choose MP3
Set the bitrate for music or voice.
Download
Save the extracted audio as MP3.
When to extract MP3 from a video
Sometimes you only want the sound: a conference talk you'll listen to on the commute, an interview to transcribe, a song from a clip, or a podcast recorded as video. Converting MP4 to MP3 gives you a small, universal audio file that plays anywhere.
It keeps the audio, drops the video
GetFormat reads your MP4, removes the picture and encodes the soundtrack as MP3 — no quality lost beyond the bitrate you choose.
Pick the right bitrate
192–320 kbps keeps music sounding good; 96–128 kbps is plenty for spoken word and keeps files tiny.
| Bitrate | Quality | Size | Best for |
|---|---|---|---|
| 128 kbps | Fine | Very small | Voice, talks, podcasts |
| 192 kbps | Good | Light | Everyday music |
| 256 kbps | Very good | Medium | Music on headphones |
| 320 kbps | Max for MP3 | Heavier | Archiving, hi-fi |
Private by design
Your video can be large and personal. That's exactly why GetFormat converts it locally with WebAssembly — nothing is uploaded, nothing is stored on a server.
Frequently asked questions
Does this keep only the audio?
Yes. The video track is dropped and only the soundtrack is saved as an MP3 file.
Is MP4 to MP3 conversion free?
Yes, it's free with no sign-up. The free tier converts up to 5 files at a time; Pro removes the limit.
Are my videos uploaded?
No. The conversion runs in your browser with WebAssembly; your video never leaves your device.
Can I choose the audio quality?
Yes, you can set the MP3 bitrate — higher for music, lower for voice and smaller files.