7 Best C# Online Compilers for Students

C# (pronounced as C sharp) is a general-purpose multi-paradigm programming language that encompasses strong typing, functional, generic, lexically scoped, imperative, declarative, object-oriented and component-oriented programming language


This language was developed around the early 2000s by Microsoft as a part of their .NET initiative. The lead designer for this was Anders Hejlsberg, and the development team is now led by Mads Torgersen. This programming language was later approved as an international standard by Ecma and ISO. The Ecma standard has listed the following goals for the design of C#:

  • The language should be simple, modern object-oriented language, which can easily be used for general purposes.
  • The language and its implementations should provide support for software engineering principles consisting of functions such as active type checking; array bound checking, detection of attempts to the usage of uninitialized variables and automatic garbage collection.  
  • The robustness, durability, and programmer productivity of the software is essential. 
  • The language should be adaptable for use in developing software components suitable for deployment in distributed environments.
  • Support for internationalization is also critical.
  • C# language should be appropriate for writing applications for both hosted and embedded systems, that range from the extensive systems using sophisticated operating systems down to the tiny ones having dedicated functions. 
  • C# apps were created with the intention of being economical with regard to its memory and processing of power requirements. It was not intended for the purpose to compete directly on performance and size with C or assembly language.

Top 7 C# Online Compilers

The compilers which are extensively used for the execution and compilation of C# online compilers are listed below.

1. JetBrains s.r.o.

JetBrains s.r.o. (formerly called IntelliJ Software) Is a software development company whose tools are useful for software developers and project managers especially for C# online compilers. This company has six offices in Prague, Saint, Petersburg, Moscow, Munich, Boston, and Novosibirsk having over 990 employees as of 2019.

This company offers roles for Integrated Development environments (IDE) for SQL and is a popular compiler for C# language. Other than this it also compiles programming languages such as Java, Kotlin, Ruby, Python, PHP, C C++, JavaScript, etc.

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This supports .NET framework and mono based projects which help you to develop a wide range of applications including .NET desktop applications in C# language. That’s why we have included this in the list of best C# online compilers.

2. Visual Studio

Microsoft Visual Studio is also an integrated development environment (IDE) developed by Microsoft. This is used for developing computer programs, as well as websites, web apps, web services, and mobile apps. Microsoft Visual Studio uses Microsoft software development platforms such as Windows Forms, Windows API, Windows Presentation Foundation, Windows Store, and also Microsoft Silverlight. 

It is capable of producing both native codes and managed code. Visual Studio supports 36 different programming languages of which the built-n languages are C, C++, C++/CLI, Visual Basic .NET, C#, JavaScript, TypeScript, XML, XSLT, HTML, and CSS.  This C# online compilers allow the code editor and the debugger to support nearly any programming language, provided a language-specific service exists. Thus it used widely used for programming in C# language.

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3. MonoDevelop

MonoDevelop compiler (Xamarin Studio) is also an open-source integrated development environment (IDE) and is used for different operating systems like Linux, macOS,[5] and Windows. The primary focus of this compiler is to develop projects using Mono and .NET frameworks. 

MonoDevelop compiler integrates features that are similar to those of NetBeans and Microsoft Visual Studio; similar features include automatic code completion, graphical user interface (GUI), source control and Web designer.  
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MonoDevelop compilers C# language but other than this it also supports Boo, C, C++, CIL, Java, JavaScript, TypeScript, Vala, Oxygene, etc. 

4. Visual Studio Code

Visual Studio Code is a type of source-code editor (compiler) which is developed by Microsoft for operating systems such as Windows, Linux, and macOS. Visual Studio Code supports debugging, embedded Git control and GitHub, syntax highlighting,  snippets, intelligent code completion, and code refactoring as well. 

It is highly customizable, as it allows the users to change the theme, keyboard shortcuts, preferences, and also lets the user install extensions that add additional functionality to the software which makes it very user-friendly. The source code for this software is free and is open-source type. This is why it takes its place on the top 7 C# online compilers.  


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5. SharpDevelop

SharpDevelop is a type of free, open-source compiler with the integrated development environment (IDE) for platforms like .NET Framework, Mono, and Glade#. SharpDevelop mainly supports the development of applications in C#; it also supports others like Visual Basic.NET, Boo,  IronPython, and IronRuby programming languages. 

SharpDevelop was designed as a free, lightweight alternative to the already existing Microsoft Visual Studio and it contains an equivalent feature for almost every particular Visual Studio feature. It includes features like project management, code editing, application compiling, and also debugging. 

This C# online compiler is written in C# language, and it consists of 20 components that integrate to form the application. The source code editor component is known as AvalonEdit which can be used by other applications as well, therefore making it the best compiler for C# language programming.

6. Roslyn

Roslyn also is known as .NET Compiler Platform (its full form), is a set of open-source compilers and code analysis APIs used for C# and Visual Basic .NET languages from Microsoft.


This compiler includes self-hosting versions of the C# compilers, which means that the compilers are written in the languages itself. The compilers are navigated with traditional command-line programs. Roslyn compiler exposes modules for syntactic analysis of the written code, semantic analysis and dynamic compilations to Common Language Infrastructure, and code emission as well, therefore making its place in the top 7 C# compiler list.

7. Portable.NET

Portable.NET is the implementation of the ECMA-335 Common Language Infrastructure (CLI). This compiler includes a type of software which is used to compile and run programs on .NET, C#, and C applications that use the .NET as their base class libraries, XML, and Windows Forms. Portable.NET also claims that it supports different instruction-set architectures such as x86, ARM, PPC, and SPARC.

Final Words

The compiler takes the text that you’ve written in C# and converts it to machine code or an intermediary language that can be executed by a Just-In-Time Compiler. You can quickly start taking projects with c# development services once you’re fluent with these compilers. These types of compilers are used for C# language, and the above list gives the top 7 C# online compilers you can use to compile your C# applications.

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