RecBeamFree tool
Convert MP4 to MP3
Pull the audio out of a video and save it as an MP3, for podcasts, transcripts, voice notes and music.
- Free, no watermark
- Files stay on your device
- No sign-up
Drop your MP4 file here
or
Choose a file to start. It is processed in your browser and never uploaded.
MP4 to MP3 in three steps
Choose your file
Drop a MP4 file into the box above or pick one from your computer.
Convert in your browser
RecBeam's converter runs on your own device, so nothing is uploaded anywhere.
Download
Preview the result and save it. No watermark, no account.
Why convert MP4 to MP3
Sometimes you only need the audio: a meeting recording, a voice-over or a talk you want to listen to on the go.
Record it right the first time
RecBeam records your screen, camera and voice in Chrome and gives you a shareable link the moment you stop. Free to start.
Get RecBeam for ChromeHow to convert MP4 to MP3
- Drop your MP4 file (or files) onto the page, or choose them from your computer.
- Press Convert. Everything runs in your browser, so a progress bar shows the work on your own device.
- Download the MP3 result.
About MP4 and MP3
MP4 is the most widely supported video container. It usually holds H.264 video with AAC audio and plays on phones, TVs, editing software, social platforms and every major browser.
MP3 is the most common compressed audio format. It plays on practically every device and app.
When to convert MP4 to MP3
Convert to pull the audio out of a recording, such as a meeting, lesson or interview.
Tip
Audio quality follows the original recording, so a clear source gives a clear MP3.
Your files stay on your device
This tool runs in your browser. Your files are not uploaded to RecBeam or anywhere else, there is no sign-up and nothing is added to your file. Browse all the free tools.
MP4 to MP3: frequently asked questions
Which quality should I pick?
192 kbps is a good default for voice and music. 128 kbps is enough for speech only.
Is it really free?
Yes. There is no price, no account, no watermark and no limit on how many files you convert.
Are my files uploaded?
No. The conversion runs entirely in your browser on your own computer. Your video never leaves your device.
Is there a file size limit?
Files up to about 1 GB work well. Very large files depend on your computer's memory and can be slow.
Why does the first conversion take longer?
The first time, your browser downloads the converter (about 30 MB). It is cached after that.