MKV → MP3 / online converter

MKV to MP3 Converter

Extract the sound from an MKV video as an MP3 file, for example the music or dialogue of a movie or concert recording.

01 / how to

How to convert MKV to MP3

ADD YOUR MKV

Drop the MKV file into the box above or choose it from your device.

CONVERT TO MP3

MP3 is already selected. Press Convert and wait a few seconds.

DOWNLOAD

Save the finished MP3 file. The original is deleted from our server.

02 / what you get

What happens to your data

Kept

Matroska files with H.264, H.265 and other codecs are read, including Blu-ray and anime rips
The soundtrack as a 192 kbps MP3, which plays everywhere. Surround sound is mixed down to stereo
Title, artist and similar tags are copied when the video has them

Good to know

Extra audio tracks and subtitles are not carried over.
The picture is dropped: you get audio only.
A video with no audio track is refused with a message that says so.
Files up to 150 MB are accepted. Long or very high-resolution videos can take several minutes, and a conversion that runs past about 4 minutes is stopped with a message.

03 / formats

MKV vs MP3

MKV

An MKV (Matroska) file is an open-standard, highly flexible video container — popular for media archiving, torrents, and playback through apps like Plex or Jellyfin.

Used in: Media archiving · Plex & Jellyfin · Torrents

MP3

An MP3 file is the most common compressed audio format — small file size, works everywhere, though it loses some audio quality in the process. It's what you'll get from most music downloads, podcasts, and voice recordings.

Used in: Music downloads · Podcasts · Universal playback

04 / more

More conversions

From MKV

MKV to MP4 MKV to GIF MKV to WEBM MKV to AVI MKV to MOV MKV to WMV

Have a different file? Open the main converter — it detects the format for you.