Open Source C# Interpreters for Windows

xacc.ide is a opensource IDE aimed at mainly .NET development. It has a code editor written in 100% C# code, which is faster than most commercial offerings.

3DProS is a programming tool. It helps people create 3D animations, design custom 3D controls and solve lots of graphic problems easily, just by drag and drop. Besides a built-in language called MathScript, it also supports Free Pascal and MinGW C++

CLearSharp is a clean C#-implementation of Common Lisp. The big goals are ANSI standard compliance, interoperability with Java and integration with scripting environments. This project is meant to be a sibling to CLearJ, with sharing of implementation.

Prolog compiler and interpreter for the .Net 2.0 framework.

Compose* is a project that aims at enhancing the modularization capabilities of component- and object-based programming. In particular, Compose* offers aspect-oriented programming through the composition filters model.

The Data Abstraction Penalty benchmark for Small Objects in Java and C#, version 2.

DrC# (Dr. C sharp) is an integrated C# development environment that supports interactive evaluation of expressions.

Dyalect is a dynamic programming language for .NET Core platform. It is lightweight, fast and modern. Dyalect (or Dy for short) is written in C# and has zero dependencies except for standard .NET Core libraries, which means that it can seamlessly run on Windows, MacOS and Linux. Moreover you can use the same binaries on any of these platforms! Dy runs on the top of its own high performance virtual machine. It compiles fast and can be used as an embeddable language or as a scripting language of your choice. It is also a good language to learn programming. Dyalect offers modern syntax, inspired by such languages as C#, Swift, Go and Rust, first class functions, coroutines, expressive modules, a dynamic type system with an ability to extend existing types with new functions and much more. Dy is shipped with a crossplatform interactive console. Main repo: https://github.com/vorov2/dyalect

Ela is a modern functional programming language that runs on CLR and Mono. It is implemented in 100% .NET and C#. Main project hosting is CodePlex: https://ela.codeplex.com/

ESA Provides a wrapper around the .NET scripting engine which adds support for hosting the scripting engine in a seperate AppDomain, and includes a Design-time environment for applications.

Forth interpreter done for .NET. Just a way to learn Forth, CIL and more C#.

The Language Processing Agency provides agents and an agent-oriented infrastructure for developing language processors in .NET. Typical language processors are transformation tools, extraction tools, language interpreters, etc.

LispSharp is a fully compiled lisp implementation for the .NET Framework. It uses a Lisp dialect similar to ISO Lisp, it has a Command-line toplevel compiler with Read Compile Print Loop.It references any .NET DLL and produces standard .NET assembly.

Locos is an object oriented framework for building parsers and other language processing tools.

MixNet is a compiler of Mixal assembly language described in Knuth's "The Art of Computer Programming" for Microsoft.NET framework. MixNet generates .NET executable files. All source code is written in C#.

NLT is free, open-source C# lexer and GLR parser suite -- which translates to ability to parse ambiguous grammars. Grammar can be defined directly in code or (preferably) in separate file (lex/yacc-like) for included generator. If you understand/guess the meaning of grammar in C#: // scanning lexer.AddStringRule(")", match => SymbolEnum.RPAREN); // parsing prod_builder.AddProduction(SymbolEnum.exp, SymbolEnum.LPAREN, SymbolEnum.exp, SymbolEnum.RPAREN, (_1, e, _3) => (AstNode)e); or grammar in NLT format: // scanning /[A-Za-z_][A-Za-z_0-9]*/ -> IDENTIFIER, IdentifierSymbol.Create($text); // parsing program -> list:namespace_list { new Program(currCoords(), (Namespaces)list) }; you should be able to use it :-). There is Example project included which serves as tutorial.

Ocean Scheme is an implementation of the Scheme programming language (aiming to be compatible with the upcoming R6RS Standard), whose native platform is the .NET framework (Mono, MS, and DotGNU). Written ground-up in C#.

OSBL is a tool for programming with blocks whose goal is to be used as an educational tool in the use of programming languages, creation of compilers, creation of virtual instruments and to be used like its own interpreter.

RSLisp is a new dialect of Lisp which works on the NET Framework with a special compilation/interpretation model. If you wish you can download the source and build it yourself for Linux (requires Mono Framework), but I don't promise that it'll work

Snack combines a high-level object oriented language (think JavaScript) with a bytecode execution engine. An example air traffic control game (a port of the classic ATC) and a text adventure framework are included.

Mira is a new programming language with a C like syntax. It borrows heavily from other poplar languages and has the design goals of intuitiveness,compiler extensibility, practical functional programming and great tool support.

The goal of VMKit is to create a body of code useful for creating and experimenting with virtual machines. The code will emphasize modularity, clarity, correctness, and portability in no particular order but all taking precedence over execution speed.

Luna is a Scheme compiler and run time environment for .NET - it is written in C# and Scheme, and provides a useful superset of the R5RS standard.

Code translation utility to convert Php website code into a Java/J2EE JSP equivalent code. Conversion application is written in Java. Utilizes Antlr to translate between the languages.