Open Source Lisp Interpreters

CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible. Interpreter, compiler, debugger, CLOS, MOP, FFI, Unicode, sockets, CLX. UI in English, German, French, Spanish, Dutch, Russian, and Danish.

Lush is a Lisp dialect with extensions for object-oriented and array-oriented programming. Lush is intended for prototyping numerically intensive applications and is designed for easy integration of existing C/C++/Fortran codes.

This project is dedicated to developing more readable format(s) for Lisp-based languages (such as Common Lisp and Scheme) and implementing those formats (readers, pretty-printers, editor macros, etc.). MIT license preferred, to spread them widely.

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.

Alef++, is a new programming language like Perl and Lisp syntax, with a many changing in classical languages designs, her specification designed to be implemented for any VM, by default can access to any private/protected/default Java fields or methods.

ECL development has moved to https://gitlab.com/embeddable-common-lisp/ecl

Ksi is a portable, embeddable Scheme implementation written in C.

fun4j brings functional programming to the JVM. It's a framework that integrates major concepts from functional programming into the Java Platform. It also provides seamless integration of Java with Lisp coding, by using a lisp-to-bytecode compiler.

ISLISP contrib is a set of lisp libraries for the "ISO/IEC 13816:1997(E) : Programming Language ISLISP", the International Standard version of Lisp standardized by ISO in 1997.

NOTE: TXR used SourceForge for hosting binary downloads only. As of July 26, 2016, TXR uses the site Bintray (bintray.com) for hosting binary downloads. Do not look for new releases here! TXR combines a text scraping language combined with an innovative Lisp dialect geared toward data munging. TXR cribs ideas from modern scripting languages, multiple Lisp dialects, functional languages, and Unix tools.

ACDK - Artefaktur Component Development Kit - is a platform independent C++-framework similar to Java or C#/.NET for generating distributed and scriptable components and applications.

An Arc interpreter implemented in Java. Arc is a dialect of Lisp.

It is a former "iLisp" project (N.B. - not emacs ilisp!), which is a small and embedabble Lisp-like interpreter.

A Glib/GTK+/GDK language binding for the librep Lisp environment

ClearLisp is a Common Lisp interpreter written in C# with a large library including all of .NET and an extensive object model. Supports IIS and XSP or Apache with mono. Includes sample code of a personal, file based wiki web application.

RefLisp is a small Lisp interpreter written in C++. It has: an built-in web server, Wiki, LISP server pages, SQL Databases, XML parser, MD5 hashing, regular expressions, reference counting and mark-sweep garbage collection, GPL.

Xbvl is the Lisp dialect used at University Paris 8 Its main features are : * Automatic optimizations of Lisp code * Possibility to add additional activities to Lisp functions, instructions and variables. These activities don't affect the p

An interpreter for a dialect of the lisp language family.

an embeddable Lisp system that is lightweight, reasonably fast, and highly extensible

Berkeley Logo is an interpreter for the Logo programming language. It was originally written in C by Brian Harvey and his students. We are rewriting it to use the wxWidgets graphics library.

CLearJ is a clean Java-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 CLearSharp, with sharing of implementation.

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.

The CommGen platform is intended to be a simple, scalable integration platform for small to medium problem sets. The architecture is simple, consisting of a distributed kernel, distributed O/S, agent and application layer.

An interactive, Lisp-like language for .Net scripting and development, having deep .Net integration, sharing type system, GC and other runtime services etc., with transparent access to .Net w/o a FFI or wrappers.

Free & Compact Lisp Library for Java 5.0 and later