- Babel - Babel is a character encoding/decoding library, not unlike GNU libiconv, but completely written in Common Lisp
- bike - bike is a library which implements cross-platform Common Lisp interface to .Net Core platform, using lisp compatibility layers
- BioBike - The BioBike system is a bioinformatics programming language embedded in an integrated biological knowledge-base, all accessible through the web
- Bordeaux-Threads - Bordeaux-Threads lets you write multi-threaded applications in a portable way
- bt-semaphore - Superseded by equivalent functionality in Bordeaux-Threads
- charseq - This package provides charseq structure which represents an efficient character sequence
- chillax - Chillax is an interface to CouchDB
- cl-agraph - CL-AGRAPH is a minimal portable Lisp client for AllegroGraph
- cl-async - Cl-async is a asynchronous I/O library wrapping the libuv C library
- cl-base32 - CL-Base32 is a Common Lisp library for encoding / decoding bytes to / from base32 strings (RFC 4648)
- cl-base58 - This library implements the base58 encoding algorithm
- cl-binary-file - The binary file package contains utilities to read and write binary files
- cl-btree - B-Tree implemented in Common Lisp
- cl-cracklib - cl-cracklib is a UFFI interface to cracklib's FascistCheck function
- CL-CXX - CL-CXX exposes all C++ functions and classes to Common Lisp using CFFI and a C++ thunk function
- cl-dawg - CL-DAWG is a DoubleArray/DAWG implementation
- CL-DIFFLIB - CL-DIFFLIB is a Lisp library for computing differences between sequences
- CL-EC2 - CL-EC2 is a Common Lisp library for communicating with Amazon's EC2 and CloudWatch Query APIs
- cl-elf - cl-elf is a library for reading and writing the ELF executable file format
- cl-grnm - cl-grnm is an implementation of the Nelder-Mead and Grid Restrained Nelder-Mead nonlinear optimization algorithms
- CL-HTML-DIFF - CL-HTML-DIFF is a library for generating a human-readable diff of two HTML documents, using HTML
- CL-JavaScript - CL-JavaScript is a JavaScript programming language compiler for Common Lisp
- cl-launch - cl-launch is a unix utility to make your Lisp software easily invokable from the shell command-line
- cl-launchpad - cl-launchpad is a library for the launchpad.net web API
- cl-liballegro-nuklear - CFFI wrapper for the Nuklear IM GUI library with liballegro backend, to be used with cl-liballegro
- cl-libserialport - cl-libserialport is a Common Lisp CFFI interface to the sigrok libserialport library, a cross-platform, minimal, C library for interfacing with serial ports
- cl-log - CL-LOG is a general purpose logging utility, loosely modelled in some respects after Gary King's Log5
- cl-mysql - cl-mysql is an interface to MySQL SQL databases
- CL-Pango - CL-PANGO is a cffi binding to the Pango text formatting library
- cl-pass - cl-pass is a password hashing (via PBKDF2) and verification library
- CL-PLUS-SSL - This library is a fork of SSL-CMUCL
- cl-random - [unmaintained, maintainers welcome] A library for uni- and multivariate probability distributions and statistics functions
- cl-speedy-queue - cl-speedy-queue is a portable, non-consing, optimized queue implementation
- CL-SpiderMonkey - CL-SpiderMonkey is a Common Lisp library for interacting with Javascript through the Mozilla SpiderMonkey library
- cl-swap-file - Swap file is a fixed block size storage library implemented in Common Lisp
- cl-tc - cl-tc is a set of bindings for the Tokyo Cabinet database
- cl-tga - CL-TGA reads tga image files
- cl-transmission - A Common Lisp library to interface with Transmission using its RPC
- cl-vectors - cl-vectors is a pure CL vector rasterization and manipulation system
- cl-virtualbox - cl-virtualbox is a library that allows you to control VirtualBox from Common Lisp, by calling the vboxmanage command
- cl-wal - cl-wal implements simple write ahead log
- cl4py - The library cl4py (pronounce as clappy) allows Python programs to call Common Lisp libraries
- clave - The Common Lisp Audio Video Engine (CLAVE) is a Lisp FFmpeg interface
- CLCB - The Common Lisp Computational Biology (CLCB) package aims to be a comprehensive, flexible and easy to use library for bioinformatics and computational biology
- cleven - Cleven is an experimental game engine with volume graphics written in Common Lisp
- Closer to MOP - Closer to MOP is a compatibility layer that rectifies many of the absent or incorrect MOP features as detected by MOP Feature Tests
- Closette - A working Closette package (with ASDF definitions) can be found on Github, it can be compiled and loaded in almost every CL implementation
- closure-html - Closure HTML is a portable HTML parsing library that understands malformed HTML
- clTcl - clTcl provides an interface to Tcl/Tk via Tcl scripts embedded in Common Lisp
- clufs - Common Lisp User Space File System
- CLX-TRUETYPE - CLX-TRUETYPE is pure Common Lisp library for antialiased font rendering using CLX, XRender, ZPB-TTF, CL-VECTORS
- common-lisp-stat - Common Lisp Statistics -- based on LispStat but updated for Common Lisp and incorporating lessons from R
- ContextL - ContextL is a language extension for Context-oriented Programming
- corona - Corona is a library for building and controlling virtual machines
- cserial-port - cserial-port is a Common Lisp library for interacting with serial ports
- deflate - Deflate by Pierre Mai is a Common Lisp implementation of Deflate (RFC 1951) decompression, with optional support for ZLIB-style (RFC 1950) and gzip-style (RFC 1952) wrappers of deflate streams
- Dexador - Dexador is a high-performance HTTP client library with neat APIs and connection-pooling
- Filtered Functions - filtered-functions implements arbitrary predicate dispatch for CLOS
- geocoder - Convert place names to geodesic coordinates and vice versa through OpenStreetMap
- glitter - glitter is a native Common Lisp library for working with git version control repositories
- glop - Glop is an OpenGL window and input management library for win32 and X11, providing a native Lisp alternative to GLUT and GLFW
- HH-AWS - HH-AWS is library for accessing the Simple Storage Service (S3), SimpleDB (SDB), Elastic Compute Cloud (EC2), and Simple Queue Service (SQS) Amazon Web Services
- hh-parse - hh-parse is an LALR(1) parser generator written in Common Lisp
- hh-redblack - hh-redblack provides in-memory and disk-based red-black trees
- hh-web - HH-Web is a library of Common Lisp code intended to simplify development of modern web applications
- html-encode - html-encode is a small library for encoding text in various web-savvy formats
- idna - International Domain Name functions for Common Lisp
- image - Image is an image-drawing library with a few drawing primitives (circles, ellipses, lines, rectangles, text)
- iterate - iterate is a lispy and extensible replacement for the LOOP macro
- ITS - ITS was the Incompatible Timesharing System developed at MIT to run on DEC PDP-6 and PDP-10 systems
- kl-verify - kl-verify is a common lisp library to generate a simple verify code image
- lambda-reader - lambda-reader is a language extension that lets you use the Unicode character λ for LAMBDA in the Lisp reader and printer
- LinJ - Linj is a Common Lisp-like language that tries to be as similar to
- linux-packaging - ASDF-extension to generate Linux packages
- lisp-on-lines - Lisp-on-lines is a web framework built on top of ContextL and UCW and provides a unique declarative application development model
- Lucerne - Lucerne is a web framework for Common Lisp, built on Clack
- lw-compat - LW Compat contains a few utility functions from the LispWorks library that are used in Pascal Costanza's software such as ContextL
- markdown.cl - markdown.cl is a markdown parsing library for Common Lisp
- McPixel - McPixel is a McCLIM pixel art editor application
- metacopy - Metacopy is a library that makes it easy to specify how to make copies of an object
- metatilities - Everyone needs their own set of utilities… These are Gary King's
- metatilities-base - Everyone needs their own set of utilities..
- Mixalot - Mixalot is a grab bag of systems related to audio in Common Lisp under an MIT-style license
- mockingbird - This package provides some useful stubbing and mocking macros for unit testing
- Moira - Moira is a simple (but not quite trivial) library for monitoring and, if necessary, restarting long-running threads
- MOP-features - This package provides a way to check what features a Common Lisp implementation supports
- package-renaming - package-renaming is a library for locally renaming CL packages
- path-parse - Parse the PATH environment variable, portably
- plank - planks is a 100% portable common lisp ObjectStore
- pml - A command-line interface tool to parse nginx logs and display statistics
- polisher - Infix notation to S-expression (Polish notation) translator for Common Lisp
- PRBS - Library of pseudo-random binary sequence generators (LFSR-2 and LFSR-4) and related functions in Common Lisp
- pretend-event-loop - This is a common lisp library that simulates an event loop
- prompt-for - Prompt the user for input of a particular type, or satisfying some predicate
- RCL - RCL is an FFI to communicate with the R statistics environment
- reader-interception - reader-interception is a library for replacing the lisp reader with your own, so you can define your own syntax or compile other language through Lisp
- rpm - rpm is a library that allows you to manipulate RPM packages from CL
- rtm-lisp-api - rtm-lisp-api is a Common Lisp interface to the Remember The Milk API, a web API which enables managing the tasks of a given user
- Rucksack - Rucksack is a persistence (embedded database) library for Common Lisp
- sb-cga - SB-CGA is a computer graphics algebra library for Common Lisp
- sb-cpu-affinity - sb-cpu-affinity lets you set Linux scheduler CPU affinity masks from SBCL
- sha3 - This library is an implementation of the Secure Hash Algorithm 3 (SHA-3), also known as Keccak
- simplified-types - Homepage: https://github.com/marcoheisig/simplified-types
- SRFI - Scheme Requests for Implementation (SRFI) are proposed language extensions to Scheme, but that doesn't stop people from implementing them for Common Lisp
- static-vectors - Allocate SIMPLE-ARRAYs in static memory
- Storable Functions - Storable Functions implements transformations of functions (including closures) from and to CLOS instances of some specific classes
- swap-bytes - swap-bytes is a library for efficient endianness conversion in SBCL and CCL
- terse-ppcre - TERSE-PPCRE aims to make manipulating CL-PPCRE regular expression parse trees easier and more succinct
- trivial-clipboard - trivial-clipboard provides access to the system clipboard
- trivial-download - trivial-download allows you to download files from the Internet from Common Lisp
- trivial-extract - Extract .tar/.tar.gz/.zip files
- trivial-features - trivial-features ensures consistent *FEATURES* across multiple Common
- trivial-file-size - This library exports a single function, file-size-in-octets
- trivial-timeout - OS- and implementation-independent access to timeouts
- uLisp - uLisp is an embedded Lisp for microcontrollers, supporting Arduino, Adafruit M0/M4, Micro:bit, ESP8266/32, and RISC-V boards
- usocket - USOCKET is a networking portability layer for BSD-style sockets
- vseloved-date-utils - date-utils is a library for handling dates in a PLIST format, like (:year 2009 :day 1 :month 3)
- which - The which UNIX command in Common Lisp
- winhttp - CFFI bindings to WinHTTP
- Wookie - Wookie is an asynchronous HTTP server written in Common Lisp
- xarray - This package implements a generalized interface for array-like
MIT
A software license; see MIT-LICENSE.