Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

IDE

An editor with building, running, and debugging built in.

An integrated development environment combines a code editor with project management, build, run, test, and debugger tools; Visual Studio, Rider, and VS Code with C# Dev Kit are the common C# IDEs.