Practice real frameworks

Hands-on .NET exercises that mirror real engineering work — from core fundamentals to the patterns interviewers actually probe. Every challenge is graded automatically and mapped to a skill below.

.NET is a cross-platform framework developed by Microsoft for building applications ranging from web to mobile to desktop. It supports multiple languages, with C# being the most prominent. The framework includes a large class library called Framework Class Library (FCL) and provides language interoperability. A distinctive feature is its Common Language Runtime (CLR), which manages memory, execution, and other system services.