Convert · MKV → MP3
Convert MKV to MP3 — right in your browser
Drop a .mkv video and pull out just the audio as an .mp3 — the music, the dialogue, the soundtrack. It's extracted on your own device, so the file is never uploaded.
Why convert MKV to MP3?
MKV (Matroska) is the container of choice for films, episodes and high-quality downloads — flexible, but big, and not every player handles it. When you only want the sound, extracting to MP3 leaves a small file that plays in any music app, on any phone or in the car, with no need to carry the whole video around.
MKV files are often very large, so the upload-to-a-server converters are slow and hand over your footage. VidKit doesn't upload anything — the audio is extracted locally in your browser, so even a multi-gigabyte .mkv starts instantly and stays private.
Frequently asked questions
Is my video uploaded anywhere?
No. The extraction happens entirely in your browser, on your own device. There's no server that could receive the file — open your browser's Network tab while it runs and you'll see zero bytes leave.
My MKV has several audio tracks — which one?
The primary (default) audio track is extracted. If your file has multiple languages or commentary tracks, the one marked default in the container is the one you'll get.
Can it handle a large movie file?
Yes. Audio is tiny next to video, so even a full-length .mkv extracts quickly and the resulting MP3 stays small — and because nothing uploads, file size isn't limited by a server.