Build and run .NET apps in the cloud on a Linux workspace.
Start coding free →.NET is Microsoft's open-source platform for building applications across web, desktop, mobile, and cloud targets. It supports C#, F#, and Visual Basic, and ships a runtime, a base class library, and tools for building services and apps on Windows, Linux, and macOS. On RunCode, the .NET SDK is preinstalled and ready in under a minute.
Open a .NET workspace →.NET runs on Windows, Linux, and macOS. The SDK includes the runtime, the base class library, and the `dotnet` CLI for creating, building, testing, and publishing projects. You can write in C#, F#, or Visual Basic depending on what the project calls for. The NuGet package ecosystem provides libraries for authentication, logging, ORM, messaging, and more. .NET is widely used in finance, healthcare, and e-commerce for applications that need reliability across deployments.