Are all of the following true for you:

• You need a version control system to track any changes made to your files
• You work with many people
• You need to work either remotely or offline frequently

Then, you need git:

The git is an open source version control system. Whether you are working on a small project or a huge one, git is a good option. Its speed and flexibility make it an awesome choice.

Here's how git works:

git works with your local copy and can be performed when you're offline:

1. Whenever you save your work, git creates an image of your files, also known as a commit
2. Each time this commit is created, it links to your other commits, which means that there's a change of all activities on your files
3. Whenever you (or someone else on your team) make changes, your commit creates a record of it
4. You can use this to reverse changes and return to a previous commit

Another benefit of git is how files are handled. Files exist as modified, staged, or committed. In the modified state, the change you've made to the file only exists in your local, working directory. You can then stage those newly modified files. The final stage is committed when changes become a permanent part of the file's development.