---
title: "MKV to MP3: Save the Sound From an MKV Video | ToolSugar"
description: "Convert the first audio track of an MKV video to MP3 in your browser. Surround tracks become stereo, and the video is not uploaded anywhere."
canonical: https://toolsugar.com/tools/mkv-to-mp3
image: https://toolsugar.com/og.png
---

# MKV to MP3

ToolSugar saves the sound from an MKV video as an MP3 in your browser, with no upload. MKV files often hold several tracks, and this tool converts only the first one, since there is no track picker yet. A 5.1 surround track is folded down to stereo. The first use downloads a 32 MB engine from a public CDN.

Runs on your device

## How it works

1. Choose your MKV video.
2. Pick an MP3 bitrate.
3. Press convert to MP3.
4. Listen to the result to confirm it is the language or track you wanted.

## Key facts

- **Track choice**: Always the first audio track in the file.
- **Surround**: 5.1 AAC was tested and comes out as stereo MP3.
- **Tested audio**: AAC in MKV. Other codecs may work, but we have not tested them.

## Common uses

- Listening to a recorded talk saved by OBS as MKV.
- Pulling the audio from a screen capture.
- Turning a long MKV recording into something for a phone.

## Questions

### Can I choose the language track?

Not today. You always get the first track. If that is the wrong one, an editing tool that can pick tracks is the better choice.

### Does MP3 keep surround sound?

No. MP3 holds mono or stereo, so surround channels are mixed into two.

[Read the MKV to MP3 guide](https://toolsugar.com/blog/how-to-convert-audio-files)

## Related tools

- [Video to MP3](https://toolsugar.com/tools/video-to-mp3)
- [AVI to MP3](https://toolsugar.com/tools/avi-to-mp3)
- [Extract Audio](https://toolsugar.com/tools/audio-extractor)
- [Increase Volume](https://toolsugar.com/tools/increase-video-volume)