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Learn C# and .NET: A Step-by-Step Roadmap

New to C#? This roadmap shows you how to learn C# in the right order, from installing your tools to object-oriented programming, everyday data work and your first web app. Each step links to free tutorials with complete, tested code.

Already know the basics? Jump straight to the C# tutorials hub, which lists every tutorial by topic.

By Bijay Kumar, 13-time Microsoft MVP · Updated October 2026

  1. Set up your tools

    Day 1

    Install the .NET SDK and an editor. Visual Studio Code is free and runs on Windows, macOS and Linux, and a console app is the simplest way to run your first C# code.

  2. Learn the C# basics

    Weeks 1-2

    Learn how C# stores data and makes decisions. Write small programs for each topic until the syntax feels natural. All of these are in the C# Basics section of the tutorials hub.

  3. Master object-oriented programming

    Weeks 3-4

    Every real C# application is built from classes. Learn the four OOP pillars and how interfaces tie them together. More in the OOP section.

  4. Work with strings, collections and dates

    Weeks 5-6

    This is the code you’ll write every day: cleaning up text, storing lists of items and formatting values for users. See the Strings, Arrays and Collections and Numbers and Dates sections.

  5. Practice with real programs

    Ongoing

    Reading code isn’t enough. Solve the C# practice programs on your own first, then compare your answer with ours.

  6. Work with files and desktop apps

    Week 7

    Reading and writing files, and building a simple Windows Forms tool, are good first projects that use everything you’ve learned so far.

  7. Move on to ASP.NET Core

    Weeks 8+

    With solid C# skills, you’re ready to build web apps and APIs with ASP.NET Core, which most .NET jobs ask for. Microsoft’s ASP.NET Core docs are the best starting point. Our ASP.NET Core tutorials collect our web guides, and the .NET versions page shows which version to install.

  8. Prepare for interviews

    When you're job-ready

    Review the questions interviewers ask most, and be ready to write code live. More in the interview questions section.

Frequently Asked Questions

Is C# good for beginners?

Yes. C# has clear, readable syntax, strong typing that catches many mistakes before your code runs, and excellent free tools. It’s also widely used for business software, web apps, cloud services and games, so what you learn is useful for a job.

How long does it take to learn C#?

If you practice a few hours a week, you can learn the basics and object-oriented programming in about four to eight weeks. Becoming job-ready with ASP.NET Core usually takes a few more months of building real projects.

Should I learn C# or .NET first?

Learn C# first. C# is the language and .NET is the platform it runs on. Once you’re comfortable with C#, you’ll pick up .NET libraries and frameworks like ASP.NET Core much faster.

Is C# free to use?

Yes. The C# compiler, the .NET SDK and Visual Studio Code are free. Visual Studio Community is also free for individual developers, students and open-source projects.

What should I build after learning the basics?

Start with a console tool that solves a small problem you have, such as renaming files or tracking expenses. Then build a Windows Forms app or a simple ASP.NET Core web API. Small finished projects teach more than long courses.