Browse free open source Lisp Interpreters and projects below. Use the toggles on the left to filter open source Lisp Interpreters by OS, license, language, programming language, and project status.

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  • 1
    CLISP - an ANSI Common Lisp
    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.
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    Downloads: 136 This Week
    Last Update:
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  • 2
    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.
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    Downloads: 22 This Week
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  • 3
    ECL development has moved to https://gitlab.com/embeddable-common-lisp/ecl
    Downloads: 4 This Week
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  • 4
    Kawa is a full Scheme implementation. It implements almost all of R5RS (for exceptions see Restrictions), plus some extensions.
    Downloads: 4 This Week
    Last Update:
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  • 5

    Readable Lisp S-expressions

    Readable Lisp/S-expressions with infix, functions, and indentation

    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.
    Downloads: 1 This Week
    Last Update:
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  • 6
    Ksi Scheme interpreter
    Ksi is a portable, embeddable Scheme implementation written in C.
    Downloads: 3 This Week
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  • 7
    It is a former "iLisp" project (N.B. - not emacs ilisp!), which is a small and embedabble Lisp-like interpreter.
    Downloads: 3 This Week
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  • 8
    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.
    Downloads: 2 This Week
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  • 9
    dayLISP is an experimental/currently incomplete ISLisp implementation written in Java. I intend dayLISP to be a complete ISLisp and to provide an interface between Java and Lisp.
    Downloads: 2 This Week
    Last Update:
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  • 10
    an embeddable Lisp system that is lightweight, reasonably fast, and highly extensible
    Downloads: 2 This Week
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  • 11
    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.
    Downloads: 1 This Week
    Last Update:
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  • 12
    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.
    Downloads: 1 This Week
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  • 13
    A Glib/GTK+/GDK language binding for the librep Lisp environment
    Downloads: 1 This Week
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  • 14
    tLISP is a small implementation of the LISP programming language written in Object Pascal. Includes tle a command line tool for working with the LISP environment, and dynamic library for calling LISP functions from other applications. tLISP 2 or dLISP is
    Downloads: 1 This Week
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  • 15
    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.
    Downloads: 0 This Week
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  • 16
    An Arc interpreter implemented in Java. Arc is a dialect of Lisp.
    Downloads: 0 This Week
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  • 17
    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.
    Downloads: 0 This Week
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  • 18
    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.
    Downloads: 0 This Week
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  • 19
    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.
    Downloads: 0 This Week
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  • 20
    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.
    Downloads: 0 This Week
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  • 21
    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.
    Downloads: 0 This Week
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  • 22
    Free & Compact Lisp Library for Java 5.0 and later
    Downloads: 0 This Week
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  • 23

    Firefly's Foxfire

    A lisp system for embedded systems.

    Downloads: 0 This Week
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  • 24
    FrAid(FRactal AID) is an interface to Java, allowing it to proc. math. data(functions/equations). A compl. standalone system utilizing the FrAid prog. lang. is available(no need to be Java programmer to use it!). Use instead of Matlab. High res. graphics
    Downloads: 0 This Week
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  • 25
    The purpose of hilisp is to create a lisp interpreter in hindi / devanagri unicode fonts. This will facilitate teaching programming to hindi speaking children at an earlier age.
    Downloads: 0 This Week
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