.NET Academy

.NET Academy

First line of C#. Production backend.

15 tracks and 61 modules covering the C# language, the .NET runtime, backend fundamentals, ASP.NET Core, databases, architecture and deployment.

Start learningOpen the playground

How it works.

01

Read

Short, focused explanations with diagrams. One concept at a time.

02

Run

Edit and run real C# right in your browser. No setup needed.

03

Practice

Exercises checked by hidden tests, with hints when you're stuck.

04

Check

Quick quizzes to confirm you really understood the idea.

Tools.

PlaygroundWrite and run any C# in your browser.OpenPracticeRandom exercises and quiz review rounds.OpenVisualizers & labsMemory, async, HTTP, SQL, caching, scaling, design.OpenCheat sheetsC#, LINQ, async, CLI, HTTP, SQL, EF Core, ASP.NET Core.OpenGlossaryKey terms, each linked to its lesson.OpenMy progressStats, streak and your skill map.Open

C# & the .NET Runtime.

From your first line of C# to async code and memory internals.

Track 0· 3 modules

Foundations

What .NET is, how code becomes a running program, and the tools you use every day.

Learn more

Track 1· 5 modules

C# Basics

Variables, types, control flow and methods — the building blocks of every program.

Learn more

Track 2· 4 modules

Object-Oriented Programming

Model the world with classes, objects, inheritance and interfaces.

Learn more

Track 3· 5 modules

Intermediate C#

The features that make C# expressive and safe: generics, collections, nullability and more.

Learn more

Track 4· 3 modules

Functional C# & LINQ

Treat behavior as data with delegates and lambdas, then query anything with LINQ.

Learn more

Track 5· 3 modules

Memory & Runtime

What happens under the hood: stack, heap, garbage collection and resource cleanup.

Learn more

Track 6· 4 modules

Async & Concurrency

Write responsive, scalable code with tasks, async/await and safe parallelism.

Learn more

Backend Fundamentals.

How backends work in general — HTTP, APIs, databases, auth, scaling.

Track 7· 10 modules

Backend Fundamentals

Language-agnostic backend concepts every developer needs before building web apps.

Learn more

Professional .NET.

Testing, data, web APIs, architecture and shipping to production.

Track 8· 3 modules

.NET Ecosystem

The everyday libraries: files, JSON, configuration, logging and dependency injection.

Learn more

Track 9· 3 modules

Testing

Prove your code works and keep it working with automated tests.

Learn more

Track 10· 3 modules

Data & EF Core

Talk to databases from .NET with ADO.NET and Entity Framework Core.

Learn more

Track 11· 5 modules

Web with ASP.NET Core

Build web APIs and web apps with ASP.NET Core.

Learn more

Track 12· 3 modules

Architecture

Structure larger applications so they stay maintainable.

Learn more

Track 13· 4 modules

Shipping

Package, deploy, monitor and tune your applications.

Learn more

Capstone.

Design and build a complete application end to end.

Track 14· 3 modules

Capstone Project

Design a system on paper, then build a task manager API with EF Core, auth, tests and Docker.

Learn more