- april - A subset of APL (A Programming Language) compiling to Common Lisp
- B-Tries - A prototypical implementation of the data structure described in the paper "B-tries for disk-based string management" (PDF)
- Babel2 - Babel2 is a collection of software created by a group of researchers primarily from the Free University of Brussels and Sony CSL Paris, which comprises:
- base64 - A very simple implementation of Base64 (RFC 4648) encoding and decoding for Common Lisp
- CCL - CCL is the Clozure Common Lisp implementation
- CCLDoc - CCLDoc is a system for creating Lisp documentation
- cdr_assoc - A setf method for (cdr (assoc ...))
- cl-apertium-stream-parser - Apertium stream parser based on esrap
- cl-autorepo - A simple lisp library to ease inclusion of non-Quicklisp libraries from repositories
- cl-clsparse - Common Lisp bindings for clSPARSE
- cl-etsy - CL-Etsy a Common Lisp interface for the etsy.com web API, by Ben Hyde
- cl-grip - cl-grip is a high-level logging system for Common Lisp, focusing on a clear user interface, support for flexible structured logging, and easy extensibility for different backends to support direct logging to various inputs
- cl-hue - Common Lisp client for Philips Hue API
- cl-marc - Minimal support for reading MARC (ISO2709 / ANSI Z39.2) records
- cl-mw - CL-MW is a library for rapid authoring of master/slave style distributed algorithms whose design promotes easy integration with high throughput batch processing systems like Condor, PBS, etc
- cl-one-time-passwords - cl-one-time-passwords implements HOTP (RFC 4226) and TOTP (RFC 6238) in Common Lisp
- cl-raytracer - A bare-bones ray tracer written in Common Lisp
- cl-ulid - ULID implementation in Common Lisp
- cl-xml-parser - An XML parser in Common Lisp
- clath - Clath is single sign-on middleware for Clack
- collapse-string - A function to remove whitespace from a string, with the option of collapsing each "run" to a single character, while optionally ignoring whitespace on the left, right, or both ends of the string
- data-lens - This library provides a language for expressing data manipulations as the composition of more primitive operations
- de.setf.thrift - de.setf.thrift is a binding for the Apache Thrift framework for scalable cross-language services development
- diff-match-patch - This is a Common Lisp port of Neil Fraser's Diff, Match and Patch
- Funds - Funds provides portable, purely functional data structures written in Common Lisp
- GBBopen - GBBopen is a high-performance open source distributed systems framework based on the concepts that were explored and refined in the UMass Generic Blackboard system (see PDF article on that history) and the commercial GBB product
- heap - Simple implementation of a binary heap for Common Lisp
- huffman - A very simple implementation of Huffman coding for Common Lisp
- json-template - An implementation of JSON Template in Common Lisp
- lazy - This is a simple lazy form evaluation package for Common Lisp
- lexer - Lexers (also called tokenizers) can be used to prepare a string or stream of character data into a form suitable as an input for parsers generated by parser generators
- lightgbm - Common Lisp interface to LightGBM
- Lisp as a shell - See CLISP-Shell locally or the
- Log4CL - Log4CL is high performance extensible logging library for Common Lisp
- Markup - Markup is an HTML generator, where instead of encoding HTML as lisp sexps, you can write HTML directly in lisp code
- mod_lisp - mod_lisp is an Apache module to write dynamic web servers and applications
- parse - The parse package is a simple token parsing library for Common Lisp
- Portable-Threads - Portable-threads is the GBBopen project's portable-thread code all packaged up for ASDF-Install
- PowerShell - An experiment in sending tasks to PowerShell from CL
- re - The re package is a small, portable, lightweight, and quick, regular expression library for Common Lisp
- SAFER - SAFER (Secure And Fast Encryption Routine) is a block cipher that was first published in 1993, followed by later variants
- Scone - Scone is a high-performance, open-source knowledge-base (KB) system intended for use as a component in many different software applications
- SHA1 - Secure Hash Algorithm 1 (SHA1) is defined in RFC 3174, and therefore more-or-less counts as a protocol
- SHCL - SHCL is
- Special Slots - A kind of pseudo-slot where the value is stored in a hidden symbol-value outside of the instance
- Targa Image Loading for Common Lisp - Targa Image Loading for Common Lisp is a library for reading Truevision (TGA) images, authored by Jeffrey Massung
- ugly-tiny-infix-macro - This is a powerful lisp macro for the purpose of writing your expressions in infix notation while not losing out on lisp's power
- USN Journal - The USN Journal keeps track of changes made to files and directories on an NTFS volume
- xgboost - Common Lisp interface to XGBoost
- XXTEA - XXTEA is an encryption algorithm, first introduced in 1998, which is relatively easy to implement
Apache 2
The 2.0 version of the Apache License is an OSI-compatible license.