Convert MP4 to MP3
Get the sound of an MP4 video as an MP3 file: drop the video, pick the quality and download the MP3. It runs in your browser, so your videos are never uploaded and there's no size limit.
Drop MP4 videos hereChoose MP4 videos
Their sound becomes MP3 files right on your device.
Your files stay on this device. Nothing is uploaded.
How to convert MP4 to MP3
Add your MP4 videos
Drop one or more MP4 videos on the blue box on this page, or choose them from your device.
Pick the quality
192 kbps MP3 is the standard and sounds like the original. Choose 320 kbps for music, or M4A to keep AAC sound exactly as it is.
Download the MP3
Each video's sound is saved on your device in seconds. Listen to it on the page, then download the files one by one or all as a ZIP.
MP4 to MP3: details
- Input
- MP4 videos; MOV, MKV, AVI, WebM and CCTV recordings work too
- Output
- MP3 at 128, 192, 256 or 320 kbps, or M4A with the video's own AAC sound
- Quality
- MP3 is encoded with LAME; M4A and MP3 sound that's already MP3 are copied without re-encoding
- Tracks
- The first audio track; the picture, subtitles and other audio tracks are left out
- Surround sound
- Mixed down to stereo, because MP3 holds at most two channels
- Metadata
- Removed, including any location your phone stored in the video
- Upload
- None; videos are processed in your browser
- Several files
- Yes, add as many as you like and download them all as one ZIP
- Price
- Free
MP4 to MP3: questions
How do I convert MP4 to MP3?
Take the sound track out with a converter that runs on your device. On tuul.io you add your MP4 videos, pick the MP3 quality and download the MP3 files, many at once if you like; nothing is uploaded.
Does converting MP4 to MP3 lose quality?
MP3 is a lossy format, so the sound is encoded again. At 192 kbps or more it sounds the same as the video for almost everyone. To keep the sound exactly as it is, choose M4A: most MP4 videos have AAC audio, which is then copied without re-encoding.
Which MP3 quality should I choose?
192 kbps is the standard and sounds like the original for speech and most music. 320 kbps is the most MP3 can hold, for music you care about. 128 kbps makes files a third smaller and is fine for speech, voice notes and CCTV sound.
What is the M4A option?
Most MP4 and MOV videos store their sound as AAC. M4A puts that AAC sound in its own file without re-encoding it, so it's exactly the same as in the video and takes a second. It plays on iPhone, Mac, Android, Windows and in browsers. When a video's sound isn't AAC, its row says so; choose MP3 for those.
Are my videos uploaded?
No. The converter downloads once to your browser and then runs on your device, so your videos never leave it.
What if the video has no sound?
Then there's nothing to extract, and the file's row says that the video has no audio track. The other files in the batch are converted as usual.
Does it work on a phone?
Yes, in current versions of Safari and Chrome. Very long videos need a lot of memory, so for files over about 1 GB a computer is more reliable.
Next steps
- Video trimmerCut the part you need out of a video or CCTV recording, without re-encoding it.
- MOV to MP3Save the sound of MOV videos as MP3.
Guides
- How to get the audio from a video (MP4 to MP3)Save the sound of an MP4 or MOV video as MP3 or M4A. Which bitrate to pick, MP3 vs M4A, the built-in ways on Mac and Windows, and a free converter.
More audio tools
- Video to MP3Take the sound out of any video, CCTV too, as MP3.