Video conversion
Convert MKV to OGG
Updated Jul 2026
MKV is a video container that can hold picture, sound, subtitles, and chapters together. OGG is an audio-only format used by games and some media players. To convert, you pull the audio track out of the MKV and encode it as OGG, discarding the video. Doing this on your own computer means the video never has to leave your machine.
- Extension
- .mkv
- Type
- Video
- Typically
- High-quality video containers
- Extension
- .ogg
- Type
- Audio
- Typically
- Open-source audio, games
- Compression
- Lossy
Convert MKV to OGG on your own computer. Nothing uploads.
How to convert MKV to OGG
- Open Morphjet and drag in the MKV file or a whole folder of them.
- Choose OGG as the output format. Morphjet pulls the audio track out for you.
- Convert. The OGG file is written next to your original, and nothing leaves your machine.
MKV vs OGG: what actually changes
| MKV | OGG | |
|---|---|---|
| Contains video | Yes, video plus one or more audio tracks | No, audio only |
| File size | Large, since it holds the full video | Much smaller, audio only |
| Quality | Can be lossless or lightly compressed, depends on the source | Lossy, compressed to keep files small |
| Compatibility | Needs a media player that supports the container | Common in games and players built to read it |
| Keeps subtitles and chapters | Yes, can store multiple tracks and markers | No, audio only, everything else is dropped |
When to convert, and when not to
Convert MKV to OGG when you only need the sound from a video, like pulling out a commentary track, a recorded lecture, or audio for a game project, and you don't need the picture.
Keep the MKV if you still need the video itself, since converting to OGG throws away everything but the audio and there's no getting the picture back afterward.
Why not just use an online converter?
MKV files are often large personal recordings, downloaded shows, or screen captures, and running one through an online converter means sending the entire video to a stranger's server just to get the audio out. Converting on your own computer keeps the video, and whatever is in it, on your machine the whole time.
Questions
Does converting MKV to OGG lose quality?
The audio gets re-encoded into a lossy format, so there's some quality loss depending on the bitrate you pick. For dialogue, commentary, or general listening it's usually not noticeable.
What happens to the video when I convert to OGG?
It's discarded. OGG only stores audio, so the picture is gone once the conversion is done. Keep the MKV if you might need the video later.
Do subtitles or chapter markers carry over?
No. Those live in the MKV container alongside the video, and OGG has no place to store them. Only the sound makes it through.
Why would I convert a video file to an audio-only format?
It's common when you only want the soundtrack, a recorded commentary, or dialogue, or when you're pulling audio into a game that expects this format.
Can I do this without uploading my video anywhere?
Yes. A desktop app like Morphjet extracts and converts the audio on your own computer, so the video file never travels over the internet.
Morphjet converts MKV, OGG, and 1,800+ other formats, all on your machine. Launching this July.