MKV to MP3

Extract MP3 audio from MKV video.

MKV to MP3 pulls the audio track out of a Matroska video file and saves it as a standalone MP3, handy for turning a video's soundtrack, podcast recording, or lecture into an audio file you can play anywhere. Conversion typically finishes in seconds. Files up to 100MB.

Drop your MKV file here

Upload files

Size up to 100 MB

How do I use MKV to MP3?

1
Upload your .mkv file: drag it into the drop zone above or click to browse.
2
Click Convert to MP3. The video uploads over an encrypted connection, and only the audio track is extracted and encoded.
3
Download the resulting .mp3 file.

Frequently asked questions

What happens to the video part of my MKV file?

It's discarded. This tool extracts only the audio track and encodes it as MP3. If you also need the video in another format, use MKV to MP4 or MKV to MOV instead.

What if my MKV has more than one audio track?

MKV files can bundle multiple audio tracks (for example, different languages or commentary tracks). This converter extracts the primary/default audio track; if your file has several and you need a specific one, check your source video's default track before converting.

How long does extraction take?

Audio extraction is generally faster than full video conversion since there's no video re-encoding involved. Most files finish in well under a minute, with longer or larger files taking a bit more time.

Do I need an account or a subscription?

Universal PDF requires a Pro subscription. One subscription unlocks every tool on the site, cancel anytime.

Last updated: July 8, 2026