If you’re starting out as a developer in 2026, learning Git and GitHub is non-negotiable. Whether you’re building websites, mobile apps, or working on a team, these tools are part of the job from day one. Git tracks your code, GitHub stores it in the cloud, and together they form the backbone of modern software development.
This guide walks you through everything you need to get started: installation, setup, the commands you’ll use daily, and how branching actually works in practice.
Approx. 7 min read
What Is Git and GitHub?
What Is Git?
Git is a version control system. It tracks changes in your code over time so you never have to resort to saving files as project-final-v2-LAST-REAL.html again.
With Git you can see the full history of every change you’ve made, undo mistakes without losing your work, and experiment with new ideas without touching your working code.
What Is GitHub?
GitHub is a cloud platform for hosting Git repositories. Think of it as Google Drive for code, purpose-built for developers.
With GitHub you can store your projects online and access them anywhere, share your code with others, collaborate through pull requests and code reviews, and build a portfolio that employers can actually look at.
Git vs GitHub: What’s the Difference?
These two are often confused, but they serve different purposes.
Git runs locally on your computer. It tracks your changes, works offline, and has no collaboration features on its own. GitHub lives in the cloud. It hosts your Git repositories online and adds team tools like pull requests, issue tracking, and code reviews.
The short version: Git is the tool, GitHub is the platform.
How to Set Up Git and GitHub (Step by Step)
Install Git
Download Git from the official website at git-scm.com. Choose the version for your operating system and run the installer. The default settings are fine.
Once it’s installed, open your terminal and run git --version. You should see something like git version 2.40.x. If you do, you’re good to go.
Configure Git
Before you do anything else, tell Git who you are. This information gets attached to every commit you make. Run git config --global user.name "Your Name" followed by git config --global user.email "your@email.com". You only need to do this once.
Create Your First Repository
A repository, or repo, is a folder that Git tracks. To create one, make a new folder with mkdir my-first-project, navigate into it with cd my-first-project, then run git init. That’s it. You now have a local Git repository.
Save Your Work with Commits
Create a file in your project folder, then stage your changes with git add . and save a snapshot with git commit -m "Initial commit".
git add . tells Git what you want to save. git commit -m takes a snapshot of those changes with a label you write yourself. This two-step process is the core of working with Git. You’ll do it dozens of times a day.
Create a GitHub Repository
Log in to GitHub and click the plus icon in the top right, then choose New repository. Give it a name, choose Public or Private, and click Create repository.
One important detail: leave “Add a README” unchecked. You’re about to push an existing project from your computer, so you want the repo to start empty.
Connect Your Local Repo to GitHub
Back in your terminal, run three commands in order. First, git remote add origin https://github.com/yourusername/repo.git to connect your local repo to GitHub. Then git branch -M main to set your default branch name. Then git push -u origin main to send your code up.
Refresh your GitHub page and your code will be live online.
Your Daily Git Workflow
This is what developers do every single day. Stage your changes with git add ., describe what you did with git commit -m "your message", then send it up with git push.
If you take nothing else from this guide, remember those three steps. Stage, commit, push. That’s the rhythm.
Clone an Existing Repository
To download a project from GitHub to your computer, run git clone followed by the repository URL. This creates a local copy you can edit straight away. If you have write access to the repo, you can push your changes back up.
Use Branches to Work Safely
A branch is a separate version of your project that runs in parallel to your main code. It lets you build a new feature or try something out without touching anything that’s already working.
To create and switch to a new branch, run git checkout -b new-feature. To go back to your main branch, run git checkout main.
Get into the habit of using branches for any new piece of work. It’s one of the habits that separates beginners from developers who ship confidently.
Pull Before You Code
Whenever you sit down to work, especially on a shared project, run git pull first. This downloads any changes from GitHub before you start, which keeps your local copy up to date and prevents messy merge conflicts later.
Git Commands You’ll Use Every Day
Keep this list handy. You’ll have it memorised within a week.
- git init
- Create a new repository
- git add .
- Stage all your changes
- git commit -m “msg”
- Save a snapshot with a label
- git push
- Upload your work to GitHub
- git pull
- Download the latest version
- git clone URL
- Copy a remote repo to your computer
- git status
- See what has changed
- git checkout -b name
- Create and switch to a new branch
Common Beginner Mistakes and How to Fix Them
Not Committing Often Enough
Many small commits are far better than one massive one. Commit every time you finish a small task, even a minor one.
Writing Vague Commit Messages
“fix” and “update” tell you nothing when you’re scrolling through history three months later. Write something specific, like “Fix login button alignment on mobile.”
Ignoring Error Messages
Git’s error messages are actually useful. Read them carefully. They almost always tell you exactly what went wrong and often suggest how to fix it.
Making All Changes Directly on the Main Branch
Create a branch for each new feature or experiment, then merge it back when you’re happy with it. Keep main stable.
Why Learn Git and GitHub in 2026?
Git knowledge is expected at virtually every developer job, including junior roles. Interviewers assume you know the basics: pull, commit, push, branch. Beyond hiring, GitHub doubles as a portfolio. Employers browse candidates’ repos to see how they actually work, not just what they claim on a CV.
Even when working alone, Git is worth using. It’s an undo button for your entire project, and it removes the anxiety of trying something new.
Your Next Steps
Now you have the complete beginner workflow. Don’t try to memorise every command at once. Instead, practice with a real project: build something small, initialise Git, make a few commits, and push it to GitHub.
Create a new project, make three separate commits, and push the whole thing to GitHub. Share the link with someone.
Once you’re comfortable with the basics, look into merging branches, resolving merge conflicts, GitHub pull requests, and the .gitignore file. The official GitHub documentation is the best place to go next.
Every developer was once a beginner working through exactly this. Keep building.