Open Source Common Lisp Software

pgloader is a data migration tool designed to load data into PostgreSQL from various sources. It automates the process of migrating databases, handling schema transformations and data type conversions. pgloader supports high-speed data loading using PostgreSQL's COPY command and provides detailed logs for monitoring the migration process.

Out of the box Nyxt ships with tens of features that allow you to quickly analyze, navigate, and extract information from the Internet. Plus, Nyxt is fully hackable- all of its source code can be introspected, modified, and tweaked to your exact specification. Navigate large documents with ease. Utilize the power of running commands against multiple objects to avoid repeating yourself. You can select and close all buffers that match the string "ele". Fuzzy search-relevant commands to instantly run them. No more digging through menus. Use fuzzy search to instantly switch between buffers. No more hunting! Use link hinting to quickly jump around. Jump to a link by URL, title, or shortcut. Use the built-in REPL to program Nyxt. Run short scripts, and try out new workflows. Everything in Nyxt is fully extensible and modifiable. Smart bookmark search.

Trial is a real-time, 3D game engine written in Common Lisp, offering a modern and modular approach to game development using the expressive power of Lisp. Built on top of the cepl graphics framework, Trial combines live-coding capabilities with powerful abstractions for building simulations, scenes, and interactive applications. It emphasizes flexibility, clarity, and developer control, making it an appealing choice for experimental games, visualizations, and research projects that benefit from dynamic development environments and rapid prototyping.

Steel Bank Common Lisp (SBCL) is a high-performance Common Lisp compiler. It is open-source/free software, with a permissive license. In addition to the compiler and runtime system for ANSI Common Lisp, it provides an interactive environment including a debugger, a statistical profiler, a code coverage tool, and many other extensions. SBCL runs on Linux, various BSDs, macOS, Solaris, and Windows. See the download page for supported platforms, and the getting started guide for additional help. SBCL is available in source and binary form for a number of different architectures. SBCL is available in binary form for many architectures. To obtain the latest binary release for your system, visit the platform support page and click on the green square which indicates your platform. You can install SBCL to a different directory prefix by setting the INSTALL_ROOT environment variable before running the installation script.

paip-lisp is the Common Lisp source code companion to Peter Norvig’s book Paradigms of Artificial Intelligence Programming. It contains implementations and examples from the book, covering classic AI techniques through Lisp programs. The repository includes systems for symbolic reasoning, search, rule-based inference, natural language processing, pattern matching, logic programming, and game-playing examples. It is valuable for readers who want to study the original code while working through the text or revisiting older AI ideas. The code also serves as a historical reference for how AI programming was taught before today’s deep-learning-centered ecosystem. paip-lisp is best suited for learners interested in Lisp, symbolic AI, and the foundations of practical AI programming.

Qlot is a project-local library installer for Common Lisp, utilizing the Quicklisp facility. It enables developers to manage dependencies on a per-project basis, ensuring consistent environments and avoiding conflicts between projects. Qlot is akin to Bundler for Ruby or Carton for Perl, providing a familiar experience for developers from other ecosystems.​

STEP (ISO 10303) development environment which supports the validation of STEP data populations via EXPRESS (ISO 10303-11) schemata and the transformation of STEP data populations from one schema to another via EXPRESS-X (ISO 10303-14) schemata.

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.

Abuse is a game by Crack Dot Com from 1995 released as public domain (shareware data and game engine). This is a fork of the popular AbuseSDL port intended to carry on development in an extremely conservative manner and to be vanilla compatible, including savegames.

Garnet is a Graphical Toolkit for Lisp, which offers many advanced features. It was originally developed by Carnegie Mellon's User Interface Software Group and is one of the most feature rich interface toolkits available for lisp. The project has been dormant but some of us are trying to update it. To get the latest stable code, use the subversion repository: svn checkout svn://svn.code.sf.net/p/garnetlisp/svn/trunk garnetlisp-svn

B-Tree implemented in Common Lisp. Stores key/value pairs onto disk based data structure. Current implementation has been tested with SBCL. Project was originally at alien-consader.org but is now made available at SourceForge.

The Common Lisp Reasoner extends the Common Lisp Object System (CLOS) to incorporate a powerful rule language suitable for all kinds of reasoning tasks, vanilla XML and RDF/XML interfaces, and support for a variety of AI-related applications, such as scheduling, planning and diagnosis.

Swap file is a fixed block size storage library implemented in Common Lisp.

Common Lisp User Space File System.

OpenAxiom is an open source Computer Algebra System. It offers an interactive environment, an expressive programming language, a compiler, a large set of mathematical libraries of interest to researchers and practitioners of computational sciences.

CIOS Audio Core is the infrastructure and subsystem in Collective Intelligence Operation System. It is a cross platforms audio abstract interface, supports including Mac OS X, Linux, Android, iPhone OS and Windows 7.

A Common Lisp framework for the Semantic Web, offering parsers and printers for the following Semantic Web standards: OWL 2 Functional, OWL 2 XML, OWLlink XML, OWLlink functional, and OWLlink S-Expression. Contains an OWLAPI-like ontology-framework.

STEP ToyBox is a project which develops various small applications for processing EXPRESS (ISO 10303-11) schemas and/or STEP Part 21 (ISO 10303-21) data files. Some are command line only while others are GUI based.

Simple unit test utility for Common Lisp. Utility's unit tests are implemented with the utlity itself and unit tests cover 100% of the code.

cl-wal is a simple write ahead log library implemented in Common Lisp. Write ahead log writes entries first to a journal and then to master stream.

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.

wxCL = wxWidgets + Common Lisp!!! The wxCL project group creates Common Lisp bindings to the wxWidgets API. We still require C, C++ and Lisp hackers.

Unlike conventional audio players, ARITA aims to help music lovers to keep their precious collections well organized and tidy. Therefore it takes a different approach to arranging audio files. They must be emplaced into libraries: 'archives' or 'cuesheets'. Archive - compressionless container like CPIO. Instead of tags for description of tracks, a plain XML/YAML file is placed alongside each archive. Rather than embedding cover art in every track, put a single image next to a library. TIFF supports multipage docs, so scans of covers/discs can be packed together in one file. ARITA will locate and display the said file, allowing you to view all pages. Optional 'signature' files can be created to keep checksums of tracks, so you may ask ARITA to verify them and make sure nothing is damaged due to a sudden failure of HDD/SSD. As for 'cuesheets': tracks are merged into a single continuous audio file and a supplementary text file, which provides information on where tracks start and end.

Acheron is a Common Lisp (CL) to JavaScript (JS) compiler. Programs are written in a subset of CL and after compilation executed in a webbrowser. Acheron has native functions that are written in JS and are the bridge between CL and JS.