🌳 Free Git course: understand version control in 30 minutes
Welcome to the free discovery course dedicated to Git and version control. In 6 short lessons (25 to 35 minutes of reading in total), you will understand why 95% of professional developers worldwide use Git every day, what sets Git apart from GitHub, and where to start if you want to learn to use it hands-on.
What this course aims for: making you understand Git and version control. What this course does not do: teaching you to type commands (that is the job of the Premium Git Course).
What you will discover
Course content
| # | Lesson | Main objective |
|---|---|---|
| 1 | The problem Git solves | Identify the pain: lost versions, impossible collaboration, broken code |
| 2 | What is version control? | Clear definition, analogies, history (local → centralized → distributed) |
| 3 | Git vs GitHub vs GitLab vs Bitbucket | Distinguish the tool (Git) from the platforms that host it |
| 4 | How Git works, without commands | Understand repository, commit, branch, merge, remote — without writing a line |
| 5 | Real-world use cases | See Git at work solo, in a team, in open source, in CI/CD |
| 6 | Recap and FAQ | Summarize, answer frequent questions, prepare the next step |
| 7 | Quiz and attestation | Validate what you learned with 5 corrected questions |
Why take this course?
- Written by practitioners — the InSkillOps teaching team gathers DevOps engineers who use Git in production every day.
- No jargon — every technical term is defined the moment it appears.
- Visual diagrams — every key concept is illustrated for immediate understanding.
- Built-in FAQ — lesson 6 answers the 13 questions beginners ask most about Git.
- A path to practice — as soon as you are ready, a clear link leads you to the Premium Git Course.
Course outline
This course is structured as 6 short lessons, to be read in order. Each one ends with a link to the next.
What you will be able to do at the end
No commands to memorize. By the end of the course, you will be able to:
- Explain in your own words what a version control system is.
- Argue why Git became the standard against SVN, CVS or homemade backups.
- Distinguish Git (the tool) from GitHub (one platform among others), and know when to talk about which.
- Describe at a high level the journey of a code change, from your machine to a production server.
- Identify the 4 use cases where Git truly changes the game.
⏱️ Estimated duration
About 25 to 35 minutes of reading in total. Each lesson takes 5 to 8 minutes.
You can read the course in one sitting, or spread it over several sessions — each lesson stands on its own and ends with a "remember in 30 seconds" summary.
Audience and prerequisites
| You are… | This course is for you if… |
|---|---|
| Computer science student | You want to understand why all your teachers talk about Git |
| Junior developer | You use Git by imitation without really knowing what happens |
| Project manager / technical PM | You need to talk with developers without feeling like an impostor |
| Career switcher to DevOps / SRE | You know Git is everywhere in the pipeline, but you never formalized it |
| Tech-curious | You want to understand how software like Linux, VS Code or React is developed collaboratively |
Prerequisites: knowing how to use a computer. That is all. No programming knowledge is required.
Frequent questions in one answer
Is this course really free?
Yes. The 6 lessons of the discovery course are entirely free and accessible without an account. Only the move to practice (the Premium Git Course — commands, exercises, real projects) requires a subscription.
Do I need to know how to code to follow this course?
No. The only prerequisite is knowing how to use a computer. No commands are required and no programming language is needed to understand the 6 lessons.
How long does this course take?
About 25 to 35 minutes of reading in total. Each lesson takes 5 to 8 minutes and can be read independently.
What is the difference between Git and GitHub?
Git is software installed on your computer to manage a project's versions. GitHub is an online service that hosts Git projects and adds collaborative features (pull requests, code review, CI/CD). Lesson 3 covers the whole difference, along with the alternatives (GitLab, Bitbucket, Gitea).
Is this course enough to land an internship or a first job?
This course gives you the conceptual foundations. To be operational in a company (creating a repository, making commits, managing branches, opening pull requests, resolving conflicts), you need practice. The Premium Git Course covers all of that with exercises and real projects.
I already know a bit of Git, is this too beginner-level?
If you already know how to commit and push, lesson 1 will feel basic. But lessons 3 and 5 (platform comparison, GitOps, CI/CD) bring value even to an intermediate profile. If in doubt, jump straight to lesson 4.
This discovery course explains why Git exists and how it works.
To learn to type the commands (git clone, git commit, git push, branches, pull requests, conflict resolution, GitHub…), move on to the Premium Git Course — included in all our paid plans.
Going further after this course
Natural next step — to go from the why (this course) to how teams use it:
- 👉 Git in Practice — daily workflow, feature branches, pull requests, conflict resolution, GitHub Flow vs GitFlow, CI/CD and open source (recommended companion course)
Other building blocks of modern DevOps:
- Linux Discovery — the operating system under every server
- Docker Discovery — containers, the 2013 revolution
- Kubernetes Discovery — orchestrating thousands of containers
- CI/CD Discovery — automating tests and deployments
- Cloud Discovery — AWS, GCP, Azure demystified
Ready? Start with lesson 1 →