Choose your MKV
Drop the .mkv file onto the box, ideally in Chrome or Edge.
MKV to GIF
MKV to GIF
Turn a Matroska (.mkv) clip into a looping GIF.
or drop a video anywhere here
MP4, MOV, WebM
Processed on your device
Free to useNo watermarkNo sign-up
How to convert MKV to GIF
MKV is a container that can hold many codecs. Chrome and Edge open MKV files whose video is H.264, VP9 or AV1; Firefox and Safari often do not. If your MKV will not open, use Chrome, or remux it to MP4 (VLC or HandBrake), then trim up to 15 seconds and create your GIF.
Trim the moment
Select up to 15 seconds and choose a preset.
Create the GIF
Click Create GIF and download it. Subtitles and audio are not included.
Which MKV files open?
| File | Opens in the browser? | What to do |
|---|---|---|
| H.264 / VP9 / AV1 in MKV | Chrome and Edge, usually | Firefox and Safari may refuse the container. |
| HEVC (H.265) in MKV | Only with HEVC hardware support | Convert to H.264 MP4 if it fails. |
| MPEG-2, VC-1 or other older codecs | No | Convert to H.264 MP4 first. |
Best GIF settings for MKV clips
| Use | Setting | Why |
|---|---|---|
| Film and TV scenes | Balanced: 480 px, 15 fps | Real footage gets large fast; keep it short. |
| Anime and flat-color animation | More detail: 720 px, 20 fps | Flat colors compress well in GIF. |
| Reaction GIFs | Smaller file: 320 px, 10 fps | Loads quickly in chats. |
Size figures come from our 3 November 2026 FFmpeg tests; the full table is on the batch converter page. Limits for every source: up to 15 seconds, 300 frames and 960 px wide per GIF; source files up to 200 MB.
Related GIF tools
MKV to GIF FAQ
Is my video uploaded?
No. The video is opened by your browser and turned into a GIF with FFmpeg compiled to WebAssembly, so it stays on your device. It is free, with no account, no daily limit and no watermark.
Are subtitles burned into the GIF?
No. Only the video track is converted; subtitle and audio tracks are ignored.
My MKV will not open. What now?
Try Chrome or Edge first. If it still fails, the codec is not supported by your browser; remux or convert it to an H.264 MP4 with VLC or HandBrake.
How long can the GIF be?
Up to 15 seconds and 300 frames per GIF.
Last updated: 3 November 2026.