RunSharp

Free Online C# Compiler & Code Runner

RunSharp is a free browser-based C# playground powered by Microsoft Roslyn. Write and execute C# instantly — no installation, no account required.

• Run C# scripts and full programs with one click
• View decompiled IL output and C# decompilation
• Add NuGet packages on the fly
• Share code snippets via a shareable URL
• Live collaborative coding sessions