What is Git? And why should we use it? Git is a source code management software, that able to track the revisions in our source code. We usually call that kind of software as the revision control. Most people use revision control like Git or Subversion (SVN) when they are working as a team to develop one software together. That's good because they can always get the updates from everyone in the team and see what others have modified. But, the revision control is not only needed when we are working in team.