12 Online Resources I’d Recommend to a New Computer Science Student

Studying Computer Science has taken me beyond what happens in a classroom. Sometimes I need help understanding a coding error. Sometimes I want to learn how to build something in Unity. Other times, I need to improve a design or figure out how to put a website online.

Different resources help with different parts of that process. A course can give me structure, documentation can answer a specific question, and an AI assistant can help me work through an idea.

This list brings together nine resources I use and three additional ones I think beginners should know about. It is not a ranking, and you do not need to start using all twelve. My aim is to help you find the right resource for the problem in front of you.

1. Stack Overflow — Help with specific coding problems

Visit Stack Overflow

I use Stack Overflow for coding help. It is a question-and-answer platform where programmers discuss specific technical problems.

For a beginner, its value is often in the explanation around an answer. Read the question carefully: is it actually the same problem as yours? Check the comments, the date, and whether the answer applies to the tools you are using.

My advice is to understand why a solution works before copying it. Fixing one error is useful; recognizing the same problem next time is even better.

2. freeCodeCamp — A structured place to practice

Visit freeCodeCamp

freeCodeCamp is one of the resources I use to learn new things. Its free, self-paced curriculum includes interactive coding challenges and project work.

I would recommend it to someone who wants a learning path rather than a collection of unrelated tutorials. Choose a subject that connects to what you want to build, and give yourself time to work through the exercises.

Finishing a lesson is a useful first step. Trying the same idea in your own small project helps you discover whether you understood it.

3. Harvard CS50 — Understanding the foundations

Visit CS50x

CS50 is another learning resource on my list. Harvard makes CS50x available online for free, including for people with no prior programming experience.

For a new student, I would use it to strengthen the foundations alongside university work. Give the problems time. If something feels difficult, work through smaller examples before looking for a complete answer.

You do not need to claim mastery after watching a lecture. The questions you can answer and the problems you can solve matter more.

4. Unity Learn — Exploring game development

Visit Unity Learn

I use Unity Learn to learn new things in game development. It offers tutorials and learning pathways, including Unity Essentials and Junior Programmer. Unity recommends basic familiarity with the editor, or completing Unity Essentials, before starting Junior Programmer.

If you are interested in games, start with a manageable project. A small game with movement, one challenge, and a clear ending gives you something you can finish and improve.

That is a more useful starting point than planning a huge game before you understand its basic systems.

5. GitHub — Keeping track of your projects

Visit GitHub

GitHub is among the tools I use. For beginners, I would recommend learning what Git does as well as how GitHub works. Git tracks changes to files; GitHub hosts repositories and adds tools for sharing and collaborating on projects.

Start with one small project. Write a README that explains what it does, record meaningful changes, and learn how to return to an earlier version.

A clear, understandable project is a better starting point than a profile filled with code you cannot explain.

6. Vercel — Putting a web project online

Visit Vercel

Vercel belongs on this list because building a website also involves making it accessible beyond your own computer. It supports deployment from connected Git repositories, with commits or pull requests triggering deployments.

For a beginner working on a suitable web project, publishing it gives you another opportunity to test it. Open the live version on your phone, share it with someone, and check whether it behaves as expected.

Check the current plan limits and terms before choosing it for your project.

7. Canva — Presenting your work clearly

Visit Canva

Canva may seem like an unusual entry in a Computer Science list, but I use it in my design work. When an AI-generated social media design misses my requirements, I sometimes fix it in Canva.

It also supports presentations, posters, and other visual formats that can help students communicate their work.

A project presentation should help someone understand what you built. Keep the text readable, use screenshots with a purpose, and make the main points easy to follow.

8. Claude Code — Assistance while working on code

Explore Claude Code

I use Claude Code for coding help. It can work with a codebase, edit files, and run commands, so it belongs in a broader list of online resources and tools rather than a list strictly limited to websites.

For a beginner, I would suggest starting with a small task. Ask it to explain the relevant files and review the changes it makes.

You should still be able to describe what changed and test whether the result meets your requirements.

9. ChatGPT — Working through questions and ideas

Visit ChatGPT

I use ChatGPT for coding help, and AI has also helped me build my own website. It is useful in my learning process, especially when I need to work through an unfamiliar idea.

A prompt I would recommend is: “Explain this error, show me a small example, and help me understand what to check.”

You can also ask for a hint before requesting a full solution. Whatever answer you receive, test it and compare important details with the relevant documentation.

10. MDN Web Docs — Learning and checking web fundamentals

Visit MDN

This is an additional recommendation rather than a claim about my own experience. MDN offers a beginner learning path for web development, alongside its reference documentation.

Its stated goal is to take learners from “beginner” to “comfortable.” That feels like a useful expectation: build enough understanding to continue learning independently.

If you are learning HTML, CSS, or JavaScript, I would keep MDN nearby when you need to check how something works.

11. roadmap.sh — Choosing what to learn next

Visit roadmap.sh

roadmap.sh is another resource I would recommend exploring. It provides interactive learning roadmaps, including one for Computer Science, with links to resources for individual topics.

My suggestion is to use it for direction. Look at the topics relevant to your current goal, then choose a manageable next step.

A roadmap should help you begin. You do not have to finish every branch before building your first project.

12. Exercism — Practicing with feedback

Visit Exercism

My final addition is Exercism, which offers programming practice and free human mentoring.

I would recommend it to students who want more opportunities to solve problems themselves. Attempt an exercise, explain your approach, and use feedback to improve it.

Reading a solution can make sense immediately. Writing your own solution reveals where you still need practice.

Where I would start

If you are new to Computer Science, choose one structured learning resource first. Add practice, keep a small project on GitHub, and use documentation or coding help when you get stuck.

You can explore game development, design, deployment, and AI tools as your projects give you a reason to use them.

The most useful resource is the one that helps you take your next step. Open it, learn something specific, and try using that knowledge to build something of your own.