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

  • Go From AI Idea to AI App Fast Icon
    Go From AI Idea to AI App Fast

    One platform to build, fine-tune, and deploy ML models. No MLOps team required.

    Access Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
    Try Free
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 1

    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:
    See Project
  • 2
    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
    Last Update:
    See Project
  • 3
    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
    Last Update:
    See Project
  • 4
    Clipper is a Python based Shell and Debugger for the CLIPS Expert System (see http://clipsrules.sourceforge.net/). It is currently build on pyGTK and pyCLIPS.
    Downloads: 0 This Week
    Last Update:
    See Project
  • $300 in Free Credit Towards Top Cloud Services Icon
    $300 in Free Credit Towards Top Cloud Services

    Build VMs, containers, AI, databases, storage—all in one place.

    Start your project in minutes. After credits run out, 20+ products include free monthly usage. Only pay when you're ready to scale.
    Get Started
  • 5
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    ECL-READLINE provides top-level readline support for ECL (Embeddable Common-Lisp) in the form of an ASDF package. It does this by creating a CLOS input-stream that wraps the GNU Readline library.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Trying to implement a lispy scripting language on top of Java in a minimalistic way: as small as possible but with a solid language design thats borrowed from common lisp.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Use the github project instead: https://github.com/BleuLlama/lithp2
    Downloads: 0 This Week
    Last Update:
    See Project
  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
    Try it Free
  • 10
    Redtail is a scripting engine library and script language. The Redtail library provides the ability to execute Scheme-like Redtail scripts from within an application, increasing flexibility.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Snow is a Lisp-based GUI description DSL for Swing. It supports declarative layout, data binding, event listeners implemented in Java or Lisp. NOTE: the project is now hosted on common-lisp.net.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    CL-BF - Brainf**k interpreter, virtual machine and code generator written in Common Lisp.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    sexpreader is a library which can be used by compiler or interpreter writers who want to read LISP-like constructs. This library can read in various tokens like integers, floats, symbols, strings, characters, booleans and parenthesis.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • Next
MongoDB Logo MongoDB