shycut

Convert MKV to MP3

Want the sound of a recording, a gameplay session or a concert video kept in MKV? Drop the file here and save it as an MP3.

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Drop your video here

Choose your video

MP4, MOV, WebM or MKV. It opens right here, on your device.

  • Nothing uploaded
  • No sign-up
  • No watermark

Tested in the browser

BrowserResultWhat came out
Google Chrome 155ConvertedMP3
WebKit 27.2 (Safari’s engine)ConvertedMP3

On October 24, 2026, a 10-second 1280×720 MKV (H.264 video, AAC sound) went through this page’s button in each browser, and what came out was read back with ffprobe.

The test file carried a location tag; no converted copy kept it.

When to turn MKV into MP3

MKV files often hold sound worth keeping on its own: a commentary, a stream’s voice track, a live set. As an MP3 it fits on a phone and plays in any car or music app.

An MKV can carry several sound tracks; the MP3 takes the main one only. Its level stays as it was, and anything with more than two channels is saved as stereo.

MKV and MP3, in short

MKV
Matroska, an open container that can hold several sound and subtitle tracks at once. Screen recorders and films use it; many phones, TVs and editing apps won’t open it.
MP3
The sound format every device and app plays, from car stereos to podcast hosts. It is compressed, so files stay small and a little detail is traded away.

How to convert

  1. Open the MKV

    Press the button and drop the file, or pick it from your files. It opens in this browser tab: nothing is uploaded, so there is no upload limit to hit.

  2. MP3 is already chosen

    The save window opens set to it. Change the file name or the quality if you like.

  3. Save

    The new file is written on your device and downloaded. Several files? Drop them together and they are converted one after another.

What changes, what stays

Picture
Left out: only the sound is saved.
Sound
The first sound track, at its own level, in stereo at most.
Quality
Small 96 kbps · Balanced 160 kbps · High 256 kbps: a minute of MP3 at Balanced is about 1.2 MB.
Details about you
The file is written from scratch, so none of the original’s metadata comes along: no location, no camera or phone model.

Questions

Which track do I get from an MKV with several languages?

The file’s main sound track. Shycut doesn’t let you pick another one.

What if the MKV’s sound is AC-3 or DTS?

Many browsers can’t decode those formats. If yours can’t, there is no sound for Shycut to read, so nothing can be saved.

Can I keep only part of it?

Yes: open the MKV in the editor instead of the converter, trim it, then save it as MP3 from there.

Your video stays with you.

Open Shycut, drop the video in and export. Free, with no account, and your video never leaves your device.

Choose your video

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