Online MKV converter

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With our free online converter, converting your videos to mkv format is easy and hassle-free. The resulting mkv file will be almost the same size as your input file. Simply upload your video and click the convert button to get started.

Converting your file to mkv is easy with these steps.

Step 1

Upload file

You can select the file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.

Step 2

Select «to mkv»

Choose mkv or any of the other 200+ supported formats you'd like to convert to.

Step 3

Download your mkv file

Please wait for the conversion to complete, then click on the download button to obtain your converted file in the mkv format.

A free and online converter for mkv files.

Fast and easy

Simply drag and drop your mkv files onto the webpage, and you'll be able to convert them to over 250 different file formats, all without having to register, provide an email address, or include a watermark.

You don't need to worry about security.

As soon as you upload your mkv files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.

Everything is stored in the cloud.

You don't have to go through the hassle of installing any software. We handle all mkv conversions in the cloud, which means that none of your computer's resources will be used in the process.

Matroska Video File

Extension	.mkv
Category	🔵 video
Programs	🔵 VLC Media Player
Main program	🔵 VLC Media Player
Description	🔵 MKV Matroska is an open-source multimedia container format that supports more than one audio and subtitle tracks in the same file. It is the most convenient file type where you can add a large sum of data, such as videos, audios, texts, and various images. It is a RAW format which you can later flip and separate based on needed data tracks.
Technical details	🔵 Whether it is video, audio, subtitle, or image, every file will be stored in a separate data line. It is a lot similar to the MP4 or AVI format, although when users are packaging an MKV file, they rarely bundle all the tracks within the file. Various media players don't even support the MKV video format; therefore, the users need to use specialized media players who can help the MKV format, such as VLC media player.
Developer	🔵 Steve Lhomme
MIME type	🔵 video/x-matroska

FAQ

❓ How do I change mkv?

To get started, either pick a file you want to convert from mkv and select it or drag and drop it into the conversion tool. Next, select the desired format that you wish to convert your file to. Once you have selected the format, click the "convert" button and wait for the tool to finish converting your file.

⏳ What is the estimated time it will take to convert mkv?

Typically, image conversions only take a few seconds, so you can expect a speedy conversion when changing mkv

🛡️ Can I trust OnlineConvertFree to convert mkv securely?

Absolutely! We take your security seriously, and guarantee the protection of your uploaded and converted files. No one will have access to your information since we delete all files once the conversion process is complete. You can trust that all types of conversions, including mkv, are 100% safe on OnlineConvertFree.

📱 Is it possible to convert mkv without having to install any software?

Yes, that's right! OnlineConvertFree doesn't require any installation, which means that you can convert any files, including mkv, on your computer or mobile device, completely online.