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Free converter

MKV to M4A

Anyfile converts a Matroska video to an M4A audio (sound only) for free, right in your browser: the file is never uploaded.

Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.

What changes from MKV to M4A

PictureLeft out: only the sound is saved
SoundAAC in an M4A file
File sizeUsually smaller: M4A compresses more tightly than MKV

When to use M4A: Music on Apple devices, iPhone voice memos and ringtone sources.

The two formats

.mkv

Matroska videoMatroska

An open container first released in 2002 and named after Russian nesting dolls. It holds any number of video, audio and subtitle tracks, plus chapters and attachments such as fonts.

Films and series with several audio languages and subtitle tracks.

Opens in VLC, mpv, IINA, Plex, Windows Media Player on Windows 10 and later

About MKV files

.m4a

M4A audioMPEG-4 Audio

An MPEG-4 file that holds only audio, usually AAC and sometimes Apple Lossless (ALAC). Apple popularised it for songs bought and ripped in iTunes.

Music on Apple devices, iPhone voice memos and ringtone sources.

Opens in Music, QuickTime, iPhone, Windows Media Player, VLC

About M4A files

Questions

How do I convert MKV to M4A?

Drop your MKV file on this page, or choose it. Anyfile converts it on your device in a moment and the M4A downloads straight away. To change it first, open it in the video editor.

Is my MKV file uploaded anywhere?

No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.

Will I lose quality?

M4A is a compressed format, and Anyfile saves at high quality, so the difference is very hard to notice.

Can I convert several MKV files at once?

Yes. Drop them together and you get one ZIP with every M4A inside.