Free tool

Video to MP3 converter MP4, MOV, WebM or MKV to MP3.

Drop any video your browser can play and download the sound as MP3. iPhone MOVs, screen recordings, MKV rips, several at once.

Video to MP3 converter at a glance

content.win pulls the audio out, even from a large video.

Works with
MP4, MOV, WebM and MKV.
Comes back as
MP3 or WAV, the full length.
Runs
In your browser.
Limits
No daily limit and no cap on how many files.
Price
Free. No account, no watermark.

How to convert a video to MP3

  1. Drop the videos in. MP4, MOV, WebM, MKV, M4V. Several at once.
  2. Pick a bitrate. 128 kbps for speech, 192 for music, 320 for archiving. Mono halves the size of speech.
  3. Download the MP3s. One per video, named after it.

Which videos work

MP4 and M4V
The common case, from phones, cameras and downloads.
MOV
iPhone and Mac recordings. Sound comes out the same; the container does not matter.
WebM
Screen recordings from Chrome, Loom and Meet.
MKV
Plays in Chrome and Edge, so the audio extracts there. Safari does not open MKV; use the compress video tool to make an MP4 first.

What people use it for

  • Turning a recorded meeting or webinar into an audio file to listen to on the move.
  • Saving the sound of a voice message that arrived as a video.
  • Pulling a track or a sample out of a clip for an edit.

Questions people ask

Which video formats can be converted to MP3?

Anything your browser plays: MP4, MOV, WebM, M4V, and MKV in Chrome and Edge. If an MKV will not open in Safari, convert it to MP4 first with the compress video tool.

Does converting lose audio quality?

One re-encode to MP3. At 192 kbps or above it is inaudible for nearly everyone; choose WAV on the main tool for a lossless copy.

How big will the MP3 be?

About 1 MB per minute at 128 kbps, 1.4 MB at 192, 2.3 MB at 320. Mono halves those.

Can I convert a long video?

Yes, within your device's memory. An hour of video is fine on a laptop; very long files on a phone may run out of memory.

Can I convert several at once?

Yes. Drop them all and download them together.