Video conversion
Convert MKV to PNG
MKV is a video container, so converting it to PNG means pulling out a single frame (or a few) and saving that frame as a still image. To do it, open the video in a converter, pick the moment you want, and export it as PNG. Doing this on your own computer means the video file never has to leave your machine.
All 2,748 conversions verified on macOS, Windows, and Linux against the shipping release, this one included. Every conversion runs entirely on your own computer.
- Extension
- .mkv
- Type
- Video
- Typically
- High-quality video containers
- Extension
- .png
- Type
- Images
- Typically
- Screenshots, logos, UI assets
- Transparency
- Supported
Convert MKV to PNG on your own computer. Nothing uploads.
One-time purchase, no subscription. 14 days to change your mind.
How to convert MKV to PNG
- Open Morphjet and drag in the MKV file you want a frame from.
- Choose PNG as the output, then pick the frame or frames you want to capture.
- Convert. The PNG is written next to your video, and nothing leaves your machine.
MKV vs PNG: what actually changes
| MKV | PNG | |
|---|---|---|
| What it holds | A full video, usually with audio and sometimes subtitles | One still frame from that video |
| File size | Large, often hundreds of MB or more | Small, typically a few hundred KB to a few MB |
| Quality | High-quality video, lossless or close to it depending on how it was encoded | Lossless, an exact pixel copy of the frame you picked |
| Motion and sound | Yes | No, just the picture |
| Opens in | A video player | Any image viewer, browser, or editor |
| Transparency | Not applicable | Supported, though a video frame won't have any |
When to convert, and when not to
Convert MKV to PNG when you need a single clean still from a video, like a thumbnail, a screenshot for a guide, or a cover image, and you want it as a lossless file rather than a compressed JPG.
Keep the MKV if you actually need the video, since a PNG only captures one frozen moment and throws away everything else, including the audio and motion.
Why not just use an online converter?
Video files are often large and personal, whether it's a recording, a screen capture, or something you don't want sitting on someone else's server. An online frame-grabber makes you upload the whole MKV first, then wait for it to come back. Doing this on your own computer skips that step entirely, the video and the frame you pull from it never leave your machine.
Questions
Does converting MKV to PNG turn the whole video into images?
No. It captures the specific frame or frames you choose, not every frame in the video. If you want a full frame-by-frame export you'd need to say so explicitly, since that can mean thousands of images for a long clip.
Will the PNG lose quality compared to the video frame?
No. PNG is lossless, so the still you export is an exact pixel copy of that moment in the video, not a recompressed approximation.
Does the PNG keep the video's metadata?
No. Things like timestamps, chapter markers, and audio track info live in the MKV container and don't carry over to a single image file.
Can I do this without uploading my video anywhere?
Yes. A desktop app like Morphjet reads the MKV and writes the PNG on your own computer, so the video never has to travel over the internet.
Morphjet runs this conversion and 2,747 others, all on your machine. Available now.
One-time purchase, no subscription. 14 days to change your mind.