Are my GIF files uploaded anywhere?

No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and convert something. You will see the page load, plus the analytics and advertising the site is paid for with — and nothing carrying your file.

Is converting GIF to MKV free?

Yes. There is no account, no watermark and no limit on how many files you convert — it runs on your own machine, so it costs us nothing to let you. Files up to 100 MB are handled in the browser.

Does converting GIF to MKV lose quality?

MKV is a compressed format, so some data is discarded. At the default setting the difference is not visible; you can raise the quality setting if you need to be certain. The result has no sound, because a GIF has none to carry. Each frame keeps its own timing, so an animation with irregular delays plays at the speed it was authored at rather than an averaged one.

Do I need to install anything to open MKV files?

No installation is needed for the conversion itself — it runs in the browser you already have. Opening the MKV afterwards needs whatever software normally handles Matroska Video on your device.

GIFtoMKV

Convert GIF to MKV

Up to 100 files at once. Mixed formats are fine.

You can convert GIF to MKV free and without an account: drop the file above and the MKV is ready to download in a second or two. The conversion happens inside your own browser, so the file is never uploaded — it works on Windows, Mac, Linux, iPhone and Android, and keeps working with the network switched off.

What GIF and MKV are for

Limited to 256 colours, but the only image format everything animates. Large files for video-like content.

An open container that holds anything — several audio tracks, subtitles, chapters. Weak on hardware players.

How to convert GIF to MKV

Drop your GIF file onto this page, or click to pick one.
Choose MKV as the target. The conversion runs inside your browser — the file is never uploaded.
Download the finished MKV file.

GIF vs MKV: what changes

GIF compared with MKV
	GIF	MKV
Full name	Graphics Interchange Format	Matroska Video
File extension	.gif	.mkv
Media type	image/gif	video/x-matroska
Compression	Lossless — nothing is discarded	Lossy — file size is bought with quality

Quality: Some quality is given up for a smaller file. At the default setting the difference is hard to see.
Where it runs: This conversion runs inside your browser. Your file is never uploaded, and it works with the network disconnected.
What can be lost: The result has no sound, because a GIF has none to carry. Each frame keeps its own timing, so an animation with irregular delays plays at the speed it was authored at rather than an averaged one.

GIF to MKV: common questions

Are my GIF files uploaded anywhere?: No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and convert something. You will see the page load, plus the analytics and advertising the site is paid for with — and nothing carrying your file.
Is converting GIF to MKV free?: Yes. There is no account, no watermark and no limit on how many files you convert — it runs on your own machine, so it costs us nothing to let you. Files up to 100 MB are handled in the browser.
Does converting GIF to MKV lose quality?: MKV is a compressed format, so some data is discarded. At the default setting the difference is not visible; you can raise the quality setting if you need to be certain. The result has no sound, because a GIF has none to carry. Each frame keeps its own timing, so an animation with irregular delays plays at the speed it was authored at rather than an averaged one.
Do I need to install anything to open MKV files?: No installation is needed for the conversion itself — it runs in the browser you already have. Opening the MKV afterwards needs whatever software normally handles Matroska Video on your device.