# List of CLI languages

CLI languages are computer programming languages that are used to produce libraries and programs that conform to the Common Language Infrastructure (CLI) specifications. With some notable exceptions, most CLI languages compile entirely to the Common Intermediate Language (CIL), an intermediate language that can be executed using the Common Language Runtime, implemented by .NET Framework, .NET Core, and Mono. Some of these languages also require the Dynamic Language Runtime (DLR).
As the program is being executed, the CIL code is just-in-time compiled (and cached) to the machine code appropriate for the architecture on which the program is running. This step can be omitted manually by caching at an earlier stage using an "ahead of time" compiler such as Microsoft's ngen.exe and Mono's "-aot" option.

## Notable CLI languages
### Current languages
#### Ada for .Net

    Ada is a multi-paradigm language, that is strongly focused on code safety, maintainability and correctness.

#### Boo

    A statically typed CLI language, inspired by Python.

#### C#

    Most widely used CLI language, bearing strong similarities to Java, and some similarity to Object Pascal (Delphi) and C++. Implementations provided by .NET Framework, .NET Core, and Mono.

#### C++/CLI

    A version of C++ including extensions for using Common Language Runtime (CLR) objects. Provides full support for .NET Framework and library only support for .NET Core. Produces mixed-mode code that produces native code for C++ objects. The compiler is provided by Microsoft.

#### ClojureCLR

    A port of Clojure to the CLI, part of the Clojure project.

#### Component Pascal

    A CLI-compliant Oberon dialect. It is a strongly typed language in the heritage of Pascal and Modula-2 but with powerful object-oriented extensions.

#### Eiffel

    Purely object-oriented language, focused on software quality, includes integrated design by contract and multiple inheritance. CLI compliant.

#### F#

    A multi-paradigm CLI language supporting functional programming and imperative object-oriented programming disciplines. Variant of ML and is largely compatible with OCaml. Implementations provided by .NET Framework, .NET Core, and Mono.

#### F*

    A dependently typed language based on F#.

#### Go

    via the RemObjects Gold compiler & multi-platform targeting.

#### IronPython

    An open-source CLI implementation of Python, built on the Dynamic Language Runtime (DLR).

#### IronScheme

    A R6RS-compliant Scheme implementation built on the DLR

#### Java

    via the RemObjects Iodine compiler & multi-platform targeting.

#### Oxygene

    An Object Pascal-based CLI language.

#### PascalABC.NET

    An Object Pascal-based language implemented on the .NET Framework.

#### PeachPie

    A compiler of PHP to .NET and .NET Core. Successor of Phalanger.

#### PowerBuilder

    Can target CLI since version 11.1.

#### PowerShell

    An object-oriented command-line shell. PowerShell can dynamically load .NET assemblies that were written in any CLI language. PowerShell itself uses a unique scripting syntax and uses curly-braces, similar to other C-based languages.

#### RemObjects Mercury

    A Visual Basic .Net-based CLI language.

#### Rust

    A research project for an experimental .NET back-end for Rust.

#### Silverfrost FTN95

    An implementation of Fortran 95.

#### Small Basic

    A BASIC-derived programming language created by Microsoft for teaching programming. Supported releases target .NET Framework versions 3.5 and 4.5.

#### Swift

    via the RemObjects Silver compiler & multi-platform targeting.

#### Synergy DBL .NET

    An object-oriented CLI compliant implementation of DBL and DIBOL produced by Synergex.

#### Team Developer

    SQLWindows Application Language (SAL) since Team Developer 6.0.

#### Visual Basic.NET

    A redesigned dialect of Classic Visual Basic. Implementations provided by .NET Framework, .NET Core, and Mono.

#### Visual COBOL

    An enhanced version of COBOL ported to the .NET Framework and to the JVM, produced by Micro Focus.

#### XSharp

    X# is an open source development language for Microsoft .NET, based on the xBase language. It comes in different flavours, such as Core, Visual Objects, Vulcan.NET, xBase++, Harbour, Foxpro, and more.

### Abandoned or deprecated languages
#### A#

    CLI implementation of Ada.

#### Axum

    An actor model concurrent programming language.

#### Cobra

    A CLI language with static and dynamic typing, design by contract and built-in unit testing.

#### Fantom

    A language compiling to .NET(no longer under active development) and to the JVM Archived 2022-04-03 at the Wayback Machine

#### GrGen.NET

    A CLI language for graph rewriting

#### IronRuby

    An open-source CLI implementation of Ruby, built on the Dynamic Language Runtime (DLR).

#### J#

    A CLI-compliant implementation of Java. The compiler is provided by Microsoft. J# has been discontinued. The last version shipped with Visual Studio 2005, and was supported until 2015.

#### JScript .NET

    A CLI implementation of ECMAScript version 3, compatible with JScript. Contains extensions for static typing. Deprecated in favor of Managed JScript.

#### Managed Extensions for C++

    A version of C++ targeting the Common Language Runtime (CLR). Deprecated in favor of C++/CLI.

#### Managed JScript

    A CLI implementation of JScript built on the Dynamic Language Runtime (DLR). Conforms to ECMAScript version 3.

#### Nemerle

    A multi-paradigm language similar to C#, OCaml and Lisp.

#### Niecza

    A CLI implementation of Perl 6.

#### Phalanger

    An implementation of PHP with extensions for ASP.NET. Predecessor of PeachPie.

#### UnityScript

    JavaScript-like language, specific to the Unity game engine. Deprecated in favor of C#.

## Related
### IKVM.NET

    A Java virtual machine that can be used to run Java and other JVM languages (e.g., JVM like Groovy, Scala) upon CLI implementations.