MKV to GIF Converter
An MKV is rarely a short clip. It is an episode, a film, an OBS recording or a long gameplay session, and the GIF you want is a few seconds somewhere inside it. Finding those seconds is most of the work; the conversion takes care of the rest.
Video to GIF
or drop MP4, MOV, MKV … files here ·
Max 95 MB per file· Up to 20 files· Deleted after 30 minutes
Files are processed on our servers and deleted after 30 minutes.
Seconds (e.g. 12.5) or minutes:seconds (0:12). GIFs get large fast, so keep clips to a few seconds.
Same format as the start time. Leave empty to use the whole video.
Play the clip slower or faster. 2× also halves the length and the file size.
Whether the GIF repeats endlessly or plays one time and stops on the last frame.
GIF holds at most 256 colors per frame. Fewer colors make a smaller file but cause banding on skies and skin.
Mixes palette colors in a fine pattern to hide banding. Sierra gives the smoothest result; none gives the smallest file.
How to use this tool
- 1
Upload the MKV
Add the .mkv file, up to 95 MB each and up to 20 at once. For a larger recording, cut the scene out first.
- 2
Enter the scene's times
Type the scene's start and end into Start at and End at, for example 12:04 and 12:09. Width starts at 640 px and Frame rate at 12 fps.
- 3
Convert and check
Press Convert to GIF. If the preview is off by a second, adjust the times and convert again.
What is inside an MKV file
MKV is the file extension of Matroska, an open container format started in 2002 and built on EBML, a binary relative of XML. It does not define a codec of its own; it wraps them, so an MKV can carry H.264, H.265, VP9 or AV1 video alongside any number of audio tracks, subtitle tracks, chapter markers and even attached fonts. WebM, the web video format, is a restricted subset of the same container.
That flexibility is why MKV is the default output of many disc-ripping tools and a common choice for screen recorders. It also explains what does not make it into a GIF: a GIF is a single silent picture stream, so only one video track is used and everything else stays in the source file.
Convert one part of an MKV to GIF
Find the scene
Play the MKV, use its chapters to jump close, and note the start and end times.
Set the clip
Type both times into Start at and End at; decimals such as 754.5 work too.
Convert and fine-tune
Watch the preview loop and nudge the times by half a second if the cut feels early or late.
MKV
Matroska video
MKV is the Matroska multimedia container, an open-source format first released in 2002. It can hold nearly any video and audio codec plus unlimited audio tracks, subtitle tracks, chapters and attachments in one file. That flexibility makes it popular for films with several languages, screen recordings from OBS and long-term archiving. Phones, browsers, editors and some TVs do not support MKV, even when they support the codec inside.
- Compression
- Lossy or lossless
- Transparency
- –
- Animation
- –
- Introduced
- 2002 · Matroska project
GIF
Graphics Interchange Format
GIF was introduced by CompuServe in 1987 and is still the most widely supported format for short, looping animations. It is lossless but limited to a palette of 256 colours per frame, so photos and gradients show banding and dithering. It supports only on/off (1-bit) transparency, which leaves jagged edges on curved shapes. Animated GIFs are often far larger than the same clip as MP4 or WebP. Every browser, chat app and social platform plays GIFs.
- Compression
- Lossless
- Transparency
- Yes
- Animation
- Yes
- Introduced
- 1987 · CompuServe
MKV holds long recordings with several tracks that chat apps, slides and web editors will not embed; cutting one scene into a GIF gives a few seconds that show up inline anywhere.
MKV to GIF file size, worked out
9.2 MBof raw pixel data in a 4-second, 640 × 360 GIF at 10 fps
The figure above is the ceiling before compression, and it shows which settings matter. Width counts twice, because it scales the height too. Frame rate and length count once each. Fewer Colors helps more modestly: the pixel count stays the same, but LZW codes get shorter and runs of identical pixels get longer.
A film scene with dark grain and camera movement is where a GIF struggles most, and keeping the video as MP4 is the better choice if the destination plays video; MKV to MP4 converts the whole file. For your own web page, an animated WebP of the same scene keeps full color at a fraction of the size.
MKV to GIF questions
Can I pick a chapter of the MKV instead of typing times?
There is no chapter menu here, but chapters are just named timestamps. Open the file in VLC, use Playback > Chapter to jump to the one you want, read the time from the player, and type it into Start at.
Which video track is used when the MKV has several?
The GIF is made from the file's default video track, which is normally the first one. MKVs with a second angle or a picture-in-picture camera feed need that track remuxed to the front first, for example with the free MKVToolNix.
Are the MKV subtitles burned into the GIF?
No. Subtitle tracks in an MKV are separate text or image streams, and they are not drawn onto the frames. If a caption on the GIF matters, the subtitles must be part of the picture before you convert.
Why does a 10-second scene from an anime episode come out smaller than live action?
Animation has large flat areas and many repeated frames, which LZW compresses very well and which need little dithering. Camera footage has grain and motion in every pixel, so the same length and width produce a much heavier GIF.
What does Bayer dithering do for an MKV scene?
Bayer lays palette colors out in a fixed grid, so the pattern stays still from frame to frame instead of shimmering. That suits animation and game footage and usually compresses better; for skin tones and skies, Sierra looks smoother.
My OBS recording is an MKV. Can I make a GIF directly from it?
Yes. OBS Studio suggests MKV because a recording survives a crash or power cut, and the file converts here like any other MKV. Long sessions are often beyond 95 MB, so cut the moment out first with trim video.
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- AVI to GIF ConverterConvert AVI to GIF online, including DivX, Xvid, MJPEG and DV files from older cameras. Pick the moment, width and frame rate; get a GIF that loops.
- MKV to MP4 ConverterConvert MKV to MP4 free online. Turns OBS recordings and Matroska files into H.264/AAC MP4 that iMovie, iPhones and smart TVs open. Up to 20 files.
- GIF to MP4 ConverterConvert GIF to MP4 video online. Animated GIFs become H.264 clips that are typically a fraction of the size and play smoothly in chats and on social media.
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