Convert MKV to M4A
Pull the soundtrack out of any MKV video and save it as M4A in seconds. Conversion happens inside your browser, so even large or private videos are never uploaded.
Drop MKV files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert MKV to M4A
- Click "Choose files" or drag your MKV videos onto the page.
- Make sure "M4A" is selected as the output format (192 kbps is a good default).
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your M4A files.
Why convert MKV to M4A?
M4A files are much smaller than video and play on any music player, phone or car stereo.
M4A is best for iPhone, iTunes/Apple Music, YouTube uploads and efficient music storage. Excellent on Apple devices, Android, Windows, browsers and most modern players.
Will I lose quality?
The audio is decoded from the MKV video and encoded to M4A. Choose a lossless format (WAV/FLAC) for zero loss, or a high bitrate for M4A.
MKV vs M4A
| MKV | M4A | |
|---|---|---|
| Full name | Matroska Video | MPEG-4 Audio (AAC) |
| Type | video | lossy |
| Best for | films, TV recordings and archives | iPhone, iTunes/Apple Music, YouTube uploads and efficient music storage |
| Typical size | varies | ~1.4 MB at 192 kbps per minute |
| Compatibility | VLC, Plex, Kodi, most modern players. | Excellent on Apple devices, Android, Windows, browsers and most modern players. |
| Developed by | - | MPEG / Apple (2001) |
MKV to M4A: questions
How do I convert MKV to M4A?
Open this page, add your MKV file, make sure M4A is selected as the output format and click Convert. Your M4A file is ready to download in seconds.
Will converting MKV to M4A lose quality?
The audio is decoded from the MKV video and encoded to M4A. Choose a lossless format (WAV/FLAC) for zero loss, or a high bitrate for M4A.
Is this MKV to M4A converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many MKV files to M4A at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between MKV and M4A?
MKV (Matroska Video) is a video format, an open container that can hold many audio, video and subtitle tracks. M4A (MPEG-4 Audio (AAC)) is a compressed (lossy) format: aAC audio in an MPEG-4 container. Better quality than MP3 at the same bitrate and the native format of Apple Music and iTunes.
Does it work on Mac, Windows, iPhone and Android?
Yes. The MKV to M4A converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.