Convert WEBM to MKV online for free
1: Choose multiple local WEBM files or enter the URL of an online WEBM file. 2: Choose "MKV" as target format and set options. 3: Click the "START CONVERSION" button to convert WEBM files to MKV online.
Set conversion options (optional)
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File extension: .webm
WebM is a video file format. It is primarily intended to offer a royalty-free alternative to use in the HTML5 video tag. It has a sister project WebP for images. The development of the format is sponsored by Google, and the corresponding software is distributed under a BSD license.
File extension: .mkv, .mk3d, .mka, .mks
The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows.