Video Editing without software, adding sound and video files to the video files will enhance the video file.
There is much different software are now available.

Video Editing without software

However, some of these are to be paid and some of the free available will not be inclusive.
However, some parallels provide the convenience of those who are not available to the software and can edit videos.
Among them is the Internet Movie Maker Online.
Ability to download the video to be edited on this website which can be completely free and can add sounds, fixtures, and fonts.
Web address – http://moviemakeronline.com/