Adapter is a free program for Windows thatcan convert file types (video, image, sound) from a single interface.
Using it is very simple. Just add the files to convert to the list, choose the format you want to convert and wait for the process to be performed.
The program has an advanced mode with which we can make further changes on the files such as resizing, cropping or the rate of conversion.
Thus, Adapter becomes a very attractive tool for those who tend to deal with file conversion often.