12 Online C# Compilers: The Best Services for Running Code in the Browser

Online C# compilers are convenient tools that allow you to write, run, and test code directly in the browser, without installing Visual Studio or other IDEs. In this article, we have gathered online C# compilers that will help you work with the language as comfortably as possible.

Replit
One of the most well-known tools. It supports C# and dozens of other languages, allows you to create full-fledged projects, connect libraries, and collaborate in teams.

.NET Fiddle
A classic online C# compiler, inspired by JSFiddle. Supports .NET 8, allows you to quickly run code, share links, and save examples. Excellent for demonstrations, learning, and discussing code on forums. Has several execution modes.

JDoodle
The service supports more than 70 languages, including C#, making it a universal tool. Here you can run scripts, share results via links, and even use the API for automation. JDoodle is often used for quick code checks and collaboration.

Paiza.IO
A convenient online compiler where you can run C# code and save projects. It stands out for its high compilation speed and ease of use. Supports project sharing via links.

Ideone
A popular online compiler known for its simplicity and speed. Supports C# and many other languages. Does not require registration, making it convenient for testing and debugging small programs.

OnlineGDB
A multifunctional tool supporting C#, C++, Python, and other languages. Provides a full-featured online debugger, which is especially useful when studying code and finding errors. Has a console interface and project support.

Try .NET
The official online compiler from Microsoft. Supports current versions of .NET, allows you to run interactive examples and share them.

OneCompiler
A modern and minimalist online compiler. Works quickly, supports C#, Java, Python, and dozens of other languages. You can save projects and share results. Has a pleasant interface and code auto-completion support.

TutorialsPoint C# Compiler
A simple yet reliable tool from the popular educational portal TutorialsPoint. Ideal for beginner programmers learning C#. Allows you to quickly test examples from textbooks and courses.

Rextester
One of the oldest online C# compilers. Supports data input, saving, and sharing code. Easy to use and not overloaded with extra features. Often used for quick checking of solutions and snippets.

myCompiler
A compact and convenient online compiler for C#. Allows you to run code, save projects, and share results. Supports many languages and has a lightweight, intuitive interface.

Coding Rooms
An online platform for learning programming, including C#. Allows teachers to create assignments and check students' solutions. Has a built-in compiler and an automated code checking system.