Audio
What is an MKA file?
Updated Jul 2026
MKA (Matroska Audio) is an audio-only version of the Matroska container, the same format behind MKV video files. Matroska is codec-agnostic, so an MKA can hold either lossless or compressed audio. The catch is that far fewer apps and devices recognize it than they do more common formats like FLAC or WAV.
- Extension
- .mka
- Type
- Audio
- Typically
- Matroska audio
Why MKA exists
Matroska is an open container format designed to hold audio, video, and subtitles together, and MKA is simply what you get when that container is used for audio alone. It grew out of the same project as MKV, so anywhere you see MKV video rips, you'll often find MKA audio tracks pulled from the same source.
Inside an MKA file, the audio inside can be lossless, keeping every detail, or a compressed codec, since Matroska works with many of them. The container just wraps that audio data along with some structure, like chapter markers or multiple tracks, in one file.
People usually run into MKA files after ripping audio from a video, extracting a soundtrack, or downloading music shared by someone using audio software that defaults to Matroska. The problem shows up next: many phones, car stereos, and media players simply don't know what to do with an MKA file, so it needs converting to something more widely supported first.
The trade-offs
Strengths
- Can carry lossless audio with no loss in detail, when that's what it holds
- Can hold multiple audio tracks and chapter markers in one file
- Flexible container that isn't tied to one specific audio codec
Watch-outs
- Not recognized by most phones, car stereos, or streaming devices
- Far less common than FLAC or WAV, so software support is spotty
- Usually needs converting before you can play it on typical hardware
A note on privacy
An MKA file can carry tags for things like track titles, chapter names, or the software that created it, though it doesn't typically embed anything as sensitive as a photo's location data. Still, uploading it to a web converter sends the whole file, tags included, to someone else's server. Converting it on your own computer keeps the file and everything in it on your machine the entire time.
Questions
How do I open an MKA file?
Some media players handle MKA natively, but many phones, car systems, and simpler apps don't recognize it at all. Converting it to FLAC or MP3 is usually the more reliable fix.
Is MKA better than FLAC?
It depends on what's inside, since MKA can hold lossless audio like FLAC or a compressed codec. FLAC is far more widely supported though, so unless you specifically need Matroska's extras like chapters or multiple tracks, FLAC is the safer choice for playback.
Why did I end up with an MKA file?
It usually happens when audio is extracted from an MKV video or exported by software that defaults to the Matroska container. It's rarely a format people choose on purpose.
Can I convert MKA without uploading it?
Yes. A desktop app like Morphjet converts MKA on your own computer, so the audio file never has to leave your machine to become something more widely playable.
Morphjet opens and converts MKA and 1,800+ other formats, all on your own computer. Launching this July.