

They include an audio/video codec library used by several other projects, libavcodec, an audio/video container mux, a demux library, libavformat, and FFmpeg command line program. It consists of many programs and libraries that handle audio, video, and multimedia files and streams. The free and open-source software project, FFmpeg, converts MP4 to WebM using command lines. A full guide to using FFmpeg to convert MP4 to WebM

Comparison table between FFmpeg and Wondershare UniConverter The best alternative to FFmpeg to convert MP4 to WebM recommended

So, when you need to upload a video to any of these sites, you may consider transforming your MP4 to WebM with FFmpeg, or its alternative, Wondershare UniConverter. Therefore, it is widely used on popular video-sharing sites like YouTube. If you like acquiring online videos, you must be familiar with the WebM format since it is specifically designed for the internet. 1.15 Convert Windows Movie Maker to MP4.
