Language

C#

Multi-paradigm (object-oriented) programming language

2001Appeared

dynamic typing, nominative typing, inference typing, strong typingType system

14.0Latest version

23Languages it influenced

Facts

Appeared: 2001
Type system: dynamic typing, nominative typing, inference typing, strong typing
Latest version: 14.0 (November 11, 2025)
Languages it influenced: 23
Paradigms: generic programming, reflective programming, event-driven programming, functional programming, structured programming, imperative programming, multi-paradigm programming, class-based programming, strict programming, object-oriented programming
Designed by: Mads Torgersen, Microsoft, Anders Hejlsberg
Developer: Microsoft
Influenced by: Cω, Icon, J#, C, Modula-3, Classic Visual Basic, C++, Java, Haskell, Delphi, Rust, Object Pascal +4
Implemented in: C#
File extensions: .cs .csx
Influences listed: 16

Sources: Wikidata (CC0) · Wikidata Q2370

Frameworks written in it · 41

Framework	Kind	Licence
.NET	open-source software	MIT License
Ansible	infrastructure provisioning tool, infrastructure automation software, configuration manager, free software	GNU General Public License v3.0 or later, proprietary license
ASP.NET Core	open-source software, web framework	Apache Software License 2.0
ASP.NET MVC Framework	web framework, free software	Apache Software License 2.0, Microsoft Public License
ASP.NET Razor	web framework	Apache License
Avalonia	widget toolkit, software	MIT License
BRUTAL	—	MIT License
CodeCharge Studio	web framework	—
CryEngine	game engine	end-user license agreement
CsUnit	free software	zlib License
DocFX	documentation generator, free and open-source software, static site generator	MIT License
Entity Framework	database abstraction layer	Apache Software License 2.0
Entity Framework Core	database abstraction layer	Apache Software License 2.0
Godot	game engine	MIT License
Granit	free software	Apache Software License 2.0
Infer.NET	machine learning framework, free and open-source software	MIT License
Managed Doom	source port	GNU General Public License, version 2.0
Microsoft Automatic Graph Layout	—	—
Microsoft Silverlight	computing platform, application framework	freeware
ML.NET	machine learning framework, free and open-source software	MIT License
Mono	—	Apache Software License 2.0, 3-clause BSD License, MIT License
MonoGame	software library, game engine, free software, free and open-source software, application framework	Microsoft Public License, MIT License
NUnit	free software, test automation framework	MIT License
OpenRA	game engine recreation	GNU General Public License, version 3.0
OpenSilver	free and open-source software	MIT License
OpenSimulator	game engine	BSD licenses
Osu!framework	—	MIT License
RE Engine	game engine	proprietary license
S&box	game engine, game creation system, video game	MIT License
Screwturn Wiki	wiki software	GNU General Public License, version 2.0
Semantic Kernel	—	MIT License
StoryBonsai	middleware, proprietary software, brand, software	proprietary license
Stride	game engine, software	MIT License
Text Template Transformation Toolkit	template processor	—
Ubisoft Anvil	game engine	proprietary license
Unigine	game engine	proprietary license
Unity	game engine, game creation system	proprietary license
Waylith	game engine, proprietary software	—
Windows Forms	widget toolkit	MIT License
WSL Container	NuGet Package, console application, container runtime	—
XUnit.net	—	Apache Software License 2.0

Influenced · 23

Language	Appeared	Paradigms	Type system	Languages it influenced
Ballerina	2017	concurrent computing	static typing, inference typing, structural typing, strong typing	—
Beef	—	object-oriented programming	static typing	—
Boo	2003	object-oriented programming	static typing, duck typing, inference typing, strong typing	2
Chapel	2009	parallel computing, array programming, object-oriented programming	static typing, inference typing	—
Crystal	2014	concurrent computing, multi-paradigm programming, object-oriented programming	static typing, nominative typing, duck typing, inference typing	—
D	2001	functional programming, imperative programming, object-oriented programming	static typing, inference typing, strong typing	5
Dart	2011	reflective programming, functional programming, imperative programming, multi-paradigm programming, object-oriented programming	static typing, inference typing, strong typing	1
F#	2005	reflective programming, concurrent computing, functional programming, imperative programming, metaprogramming, object-oriented programming	static typing, inference typing, strong typing	4
Gosu	2002	object-oriented programming	static typing	1
Hack	2014	—	dynamic typing, gradual typing, static typing, inference typing, weak typing	—
Java	1995	generic programming, reflective programming, functional programming, structured programming, imperative programming, class-based programming, concurrent object-oriented programming, component-based software engineering, object-oriented programming	manifest typing, static typing, nominative typing, safe typing, strong typing	43
JS++	2011	generic programming, functional programming, structured programming, imperative programming, object-oriented programming	dynamic typing, gradual typing, static typing	—
Kotlin	2011	generic programming, reflective programming, concurrent computing, functional programming, structured programming, imperative programming, declarative programming, object-oriented programming	static typing, inference typing, strong typing	2
Monkey X	2011	object-oriented programming	—	—
Nim	2008	concurrent computing, procedural programming, functional programming, imperative programming, macro metaprogramming, metaprogramming, object-oriented programming	static typing, inference typing, structural typing, strong typing	—
PascalABC.NET	2007	object-oriented programming	—	—
PowerShell	2006	reflective programming, procedural programming, functional programming, imperative programming, object-oriented programming	dynamic typing, inference typing, safe typing, strong typing	—
Q#	2017	functional programming, imperative programming, quantum programming	static typing, strong typing	—
Ring	2016	procedural programming, functional programming, imperative programming, declarative programming, object-oriented programming	dynamic typing, duck typing	—
Rust	2006	generic programming, concurrent computing, procedural programming, functional programming, imperative programming, object-oriented programming	static typing, nominative typing, inference typing, linear typing, strong typing	12
Swift	2014	functional programming, imperative programming, block-structured programming, multi-paradigm programming, declarative programming, object-oriented programming	static typing, inference typing, strong typing	5
TypeScript	2012	generic programming, event-driven programming, functional programming, imperative programming, object-oriented programming	gradual typing, duck typing, structural typing	2
Vala	2006	structured programming, imperative programming, object-oriented programming	static typing, inference typing, structural typing, strong typing	—

Languages implemented in it · 4

Language	Appeared	Paradigms	Type system	Languages it influenced
Azure Bicep	—	—	—	—
GrGen	2003	multi-paradigm programming	dynamic typing, nominative typing	—
ILNumerics.Net	—	object-oriented programming	—	—
PowerShell	2006	reflective programming, procedural programming, functional programming, imperative programming, object-oriented programming	dynamic typing, inference typing, safe typing, strong typing	—