Convert MKV to MP3
Private by design: the conversion runs on your device. Nothing is uploaded.
- Choose the target format
- Drop your file (or click to browse)
- Download the converted file
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Output format: mp3
Pulling the audio out of an MKV is what you do with a recorded lecture, a conference session or a stream capture that only ever needed to be listened to. This page reads the Matroska container, takes the primary audio track and encodes it as an MP3 you can put on a phone. The video is read locally and only the sound comes back out.
Frequently asked questions
- The MKV has several audio tracks, which one gets used?
- The one the decoder ranks as best available, which normally means the highest channel count. Picking a particular language track is not offered on this page yet.
- Does the whole video have to be processed?
- The container is read from end to end, so a long recording takes a while, but only the audio stream is actually decoded and re-encoded. That is far quicker than a full video conversion of the same file.
- Can I get the audio out without any loss?
- Not here: the track is re-encoded to MP3 for the sake of compatibility. One pass at this bitrate is inaudible on lectures and talks.