Convert WebM to MKV Online
WebM is an open video format made for the web, played by all modern browsers. Upload your WebM files, click "Convert" and download the result as MKV. MKV can hold several audio tracks and subtitles and is played by VLC and most media players.
The conversion runs on our server and takes a few seconds. Files are sent over an encrypted connection and deleted automatically after 48 hours.
Why Use This WebM to MKV Converter?
- An MKV for VLC and media players
- Several files at once, up to 1 GB each
- Encrypted connection, files deleted after 48 hours
- Free, no registration, no watermark
How to Convert WebM to MKV
- Select or drag your WebM files into the upload area
- Click "Convert" and wait a few seconds
- Download the MKV files
Frequently Asked Questions
Is this WebM to MKV converter free?
Yes, it is completely free, with no registration and no watermark.
What is a WebM file?
WebM is an open video format made for the web, played by all modern browsers.
Why convert WebM to MKV?
MKV can hold several audio tracks and subtitles and is played by VLC and most media players.
Are my files safe?
Files are sent over an encrypted connection and deleted from our server automatically after 48 hours; you can delete them earlier in "Your files".