Add an animated GIF
Choose a non-empty .gif file of 100 MB or less that host FFmpeg can read.
Free online GIF to MKV converter
Make an H.264 MKV video from an animated GIF.
Fileverses processes a qualifying GIF server-side, maps its first video stream, and writes a newly encoded MKV video without audio.
- H.264 MKV video
- GIF animation frames
- No audio track
Processed by our self-hosted conversion engine
Supported files
Animated GIF in. Newly encoded MKV out.
GIFMKV
The fixed profile turns the GIF’s first video stream into H.264 in an MKV container. GIF has no audio stream, so the result is video-only.
How it works
Convert an animated GIF into MKV video
Encode an MKV video
Start the sequential server queue to encode the GIF’s first video stream as H.264 in a new MKV.
Download and validate
Download each separately named .mkv result and test it in the player or workflow that needs MKV.
GIF-to-video boundaries
First GIF video stream, fixed H.264 encoding.
Audio, metadata, chapters, and source structure are removed. There are no controls for trimming, scaling, frame rate, codec, or quality.
Convert GIF to MKVGIF source boundary
Only non-empty .gif files up to 100 MB are accepted, and the source must be readable by host FFmpeg.
Video-only MKV
GIF has no audio stream. The profile maps only its first video stream, so a successful MKV contains H.264 video and no audio.
Fresh fixed encode
This is not a remux. FFmpeg creates a new H.264 video, so appearance, timing, file size, and compatibility can differ from the GIF.
No source structure or editing
Metadata and chapters are removed; there are no trim, crop, resize, frame-rate, bitrate, codec, quality, or stream-selection controls.
GIF to MKV FAQ
Animated GIF conversion answers
Will the MKV contain sound from the GIF?+−
No. GIF sources do not provide an audio stream, and this profile writes video-only MKV output.
What video codec is used?+−
A successful result uses newly encoded H.264 video in an MKV container.
Does this only rename the GIF to MKV?+−
No. The GIF video stream is decoded and re-encoded; this is not a container-only change.
Are all GIF frames kept exactly as-is?+−
The first readable GIF video stream is converted, but a new encode can change visual output or timing. Exact equivalence is not promised.
Can I trim, resize, or choose H.264 quality?+−
No. This route has no trim, crop, resize, frame-rate, bitrate, codec, or quality controls.
What happens to metadata and chapters?+−
Source metadata and chapters are removed. There are no subtitles, attachments, alternate streams, or audio tracks in the output.
Which GIF files can I upload?+−
Use a non-empty .gif file up to 100 MB that host FFmpeg can read. Test the downloaded MKV in its intended destination.