Go is generally better for cloud-native microservices and CLI tools due to its fast compilation, built-in concurrency, and zero-cost garbage collection, while C# excels in enterprise web applications, desktop software, and game development with its rich ecosystem and mature tooling. Choose Go if you need high-performance networking or simple deployment; choose C# if you require complex business logic, heavy IDE support, or cross-platform desktop apps.
// Go: Simple HTTP server (net/http)
package main
import "net/http"
func main() { http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("Hello")) }); http.ListenAndServe(":8080", nil) }
// C#: Simple HTTP server (ASP.NET Core)
using Microsoft.AspNetCore.Builder;
var builder = WebApplication.CreateBuilder();
var app = builder.Build();
app.MapGet("/", () => "Hello");
app.Run();