Git is a tool that tracks every change you make to your code, lets you undo mistakes, and lets many people work on the same project without overwriting each other. It is the most widely used version-control system in the world, which means it is one specific implementation of the broader idea of version control. Every time you save a meaningful checkpoint, called a commit, Git records a snapshot of your whole project so you can return to it later. That history is the safety net that makes serious software work possible.
Git versus version control: the key distinction
It is easy to blur these, so be clear: version control is the general concept of tracking and managing changes to files over time. Git is one tool that does it. Other version-control systems exist, like Mercurial and the older Subversion, but Git won by a wide margin. So when someone says "use version control," Git is almost always what they mean in 2026, even though the two are not synonyms. If you want the broader idea, read the companion piece on what version control is; this post is about the tool itself.
How Git works
Git stores your project history as a series of commits. A commit is a snapshot plus a short message explaining what changed and why. Strung together, commits form a timeline you can move along.
The everyday flow is small. You change some files, stage the ones you want to save, then commit them with a message. Git keeps that locally on your computer; you do not need an internet connection to commit. Later you can push your commits to a shared server so teammates get them.
Branches are the feature that makes Git powerful. A branch is an independent line of work. You create one to build a new feature, make commits on it freely, and the main version stays untouched. When the feature is ready, you merge the branch back in. If the experiment fails, you throw the branch away and nothing is lost.
The commands you actually use
| Command |
What it does |
| git init |
Start tracking a project |
| git add |
Stage changes for the next commit |
| git commit |
Save a snapshot with a message |
| git branch |
Create or list branches |
| git merge |
Combine a branch into another |
| git push |
Send commits to a shared server |
| git pull |
Get teammates commits |
A first session looks like this:
git init # save your first snapshot
git add .
git commit -m "first version of the project"
That is the core loop. Most days you repeat add, commit, push, and occasionally branch and merge.
A concrete everyday example
Imagine writing an important document. Without Git you save "report.docx", then "report-final.docx", then "report-final-REALLY.docx", and you can never quite remember which is which. With Git you keep one file and commit at each stage with a clear note like "added the conclusion." You can view exactly what changed between any two points, restore an old version instantly, and let a coworker edit a copy without clobbering yours. That is Git replacing the chaos of file-name versioning.
Common misconceptions
- Git is not GitHub. Git is the tool on your computer. GitHub, GitLab, and Bitbucket are websites that host Git projects and add things like pull requests and issue tracking. You can use Git with no website at all.
- Git is not only for big teams. Solo developers benefit just as much, gaining a full undo history and safe experimentation.
- Commits are not backups by themselves. Until you push to a remote server, your history lives only on your machine. Pushing is what protects you from a dead laptop.
- You do not need every command. Git has hundreds of options, but a handful cover nearly all daily work. Fear of the command line keeps people away needlessly.
What to skip
- Skip memorizing rare commands. Learn add, commit, branch, merge, push, and pull well; look up the rest when you need them.
- Skip committing giant blobs of unrelated changes. Small, focused commits with clear messages make history actually useful.
- Skip fear of breaking things. Branches exist so you can experiment freely. Almost nothing in Git is truly unrecoverable.
FAQ
Is Git the same as GitHub?
No. Git is the version-control tool that runs on your computer. GitHub is a website that hosts Git repositories online and adds collaboration features. You can use Git without GitHub.
Is Git the same as version control?
Not quite. Version control is the general concept of tracking changes over time. Git is the most popular tool that implements it, so the terms get used loosely, but they are not identical.
Do I need the internet to use Git?
No. Git is mostly local, so you can commit, branch, and view history offline. You only need a connection to push to or pull from a shared server.
How long does it take to learn Git?
The everyday basics take a day or two of practice. Mastering advanced workflows takes longer, but you can be productive with a small set of commands quickly.
Where to go next
Understand version control, the bigger idea behind Git, start coding from scratch, and learn how to do good code reviews.