Avidemux is a free and open-source video editing software applicable to Microsoft Windows, Mac OS, Linux, and BSD. With it, you can perform various tasks. Aside from the capability to cut, convert, resize, filter videos, merging video files is also realized with it. If you are full of curiosity for its joining feature, just take a look at this piece. From it, not merely can you understand how Avidemux join files but also acquire a superb Avidemux alternative.