A WEBM file is a multimedia container format that is widely used for web video playback. It is designed to be a royalty-free alternative to other video formats like H.264. WEBM files typically contain video streams compressed with the VP8 or VP9 video codecs and audio streams compressed with the Vorbis or Opus audio codecs. WEBM files are commonly used for HTML5 video on the web.

How to open a WEBM file:

1. Web Browsers:

2. Media Players:

3. Video Editing Software:

4. Converters:

Programs that may open WEBM files:

1. VLC Media Player:

2. Google Chrome / Mozilla Firefox:

Various apps that use files with WEBM extension: