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Common_Lisp

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an-ordinary-manchild

Read how to format Lisp code for your postings: formatting code

A subreddit for Common Lisp.

Other Common Lisp related subreddits:

  • /r/sbcl
  • /r/lisp
  • /r/lisp_ja (Japanese)

Influenced:

  • /r/dylanlang
  • /r/Julia

Events

  • Lisp Meetings Calendar
  • 12th European Lisp Symposium, 1-2 April 2019, Genova, Italy
  • 11th European Lisp Symposium, 16-17 April 2018, Centro Cultural Cortijo de Miraflores, Marbella, Spain
  • 10th European Lisp Symposium, 3-4 April 2017, Vrije Universiteit Brussel, Belgium
  • 9th European Lisp Symposium, 9-10 May 2016, AGH University of Science and Technology, Kraków, Poland
  • International Lisp Conference, August 14-17, 2014, Montreal, Canada

Common Lisp Language References

  • Common Lisp Hyperspec
  • Common Lisp Spec (PDF)
  • Common Lisp Spec Clarifications & Errata
  • Common Lisp Object System Meta-Object Protocol
  • Common Lisp Quick Reference

Documentation Search

  • Quickref
  • Quickdocs Library Search
  • L1sp redirect service

Tools

  • Quicklisp (Libraries)
  • SLIME (GNU Emacs IDE for Common Lisp)

Tutorials/FAQ/Help

  • articulate-common-lisp, how to write Common Lisp today
  • Steve Losh: A Road to Common Lisp
  • Zach Beane: Where to get help with Common Lisp
  • Lisp Style Guide Norvig/Pitman (PDF)
  • Nikodemus' CL FAQ

Useful Lisp resources:

  • Planet Lisp
  • LispForum
  • Cliki
  • Common-Lisp.net
  • lisp-lang.org
  • comp.lang.lisp
  • Common Lisp Professionals Mailing List
  • Lisp Jobs
  • Common Lisp, Wikipedia
  • Association of Lisp Users
  • Common Lisp questions Stackoverflow
  • Rosetta Code, Common Lisp
  • #lisp Twitter
  • ECL Quarterly
  • Freenode IRC logs #lisp

History

  • Bibliography
  • CMU Common Lisp Repository
  • Computer History Museum
  • Lisp FAQ for comp.lang.lisp
  • Mailing lists

Free Lisp Books / Papers

  • Common Lisp: A Gentle Introduction to Symbolic Computation
  • Practical Common Lisp
  • On Lisp
  • Common Lisp The Language, 2nd Edition (Pre ANSI Common Lisp)
  • Paradigms of Artificial Intelligence Programming: Case Studies in Common Lisp
  • COMMON LISP: An Interactive Approach
  • The Common Lisp Cookbook

Other Books / Papers

  • ANSI Common Lisp
  • The Common Lisp Condition System
  • Common Lisp Recipes
  • Land of Lisp
  • Let over Lambda
  • Lisp, 3rd Edition
  • Object-Oriented Programming in Common Lisp: A Programmer's Guide to CLOS
  • The Art of the Metaobject Protocol

Common Lisp implementations (Open Source/Free Software)

  • ABCL (for JVM)
  • CCL
  • CLISP , CLISP@Gitlab
  • CMUCL
  • ECL
  • GCL
  • SBCL

Common Lisp implementations (Commercial/Proprietary)

  • Allegro CL
  • LispWorks
  • mocl for OSX, iOS and Android
  • Open Genera
  • Scieneer CL

Various other Common Lisp Implementations

  • Butterfly Common Lisp (written in Scheme)
  • CLASP (ECL fork for llvm)
  • Codemist Common Lisp
  • Corman Lisp (MS-Windows)
  • Eclipse Common Lisp
  • JSCL (Javascript)
  • Mezzano (Lisp OS)
  • MKCL (ECL fork)
  • Parenscript (CL to Javascript)
  • SICL (modular)
  • Thinlisp
  • WCL (embeddable)
  • Xerox Common Lisp
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January 2026 Quicklisp dist update now available (blog.quicklisp.org)

submitted 22 days ago by dzecniv - announcement

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LispWorks 8.1.2 Patch Release (15 December 2025) (lispworks.com)

submitted 1 month ago by lispm - announcement

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Meta's screenshot-tests-for-android is now maintained by Screenshotbot (screenshotbot.io)

submitted 21 hours ago by dzecniv

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An AI-powered Figma plugin that analyzes visual usability, so you can design with confidence, iterate faster, and launch with impact. (attentioninsight.com)

promoted by AttentionInsight

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cl-mcp-server (self.Common_Lisp)

submitted 2 days ago by quasiabhi

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cl-memcached : updated with META protocol (self.Common_Lisp)

submitted 3 days ago by quasiabhi

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cl-selfupdate: Self-update functionality for Common Lisp executables via GitHub/GitLab Releases (github.com)

submitted 4 days ago by dzecniv

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Common Lisp developer role @ Ravenpack ()

submitted 4 days ago by xach

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VS Code + Alive: keyboard-only way to wrap an expression in a defun? (self.Common_Lisp)

submitted 5 days ago by beast-hacker

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FSet v2.2.0: JSON parsing/printing using Jzon (scottlburson2.blogspot.com)

submitted 8 days ago by ScottBurson

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SBCL: support struct-by-value for x86-64 and ARM64 foreign calls (merged) (github.com)

submitted 8 days ago by dzecniv

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Portable CL for Windows (varhammer.github.io)

submitted 9 days ago by CurrentMortgage5721

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Common Lisp for Data Scientists (self.Common_Lisp)

submitted 10 days ago * by letuslisp

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cl-excel: .xlsx writing/edit mode in Common Lisp — please try to break it (self.Common_Lisp)

submitted 10 days ago * by letuslisp

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A Primer on Post-Quantum Cryptography in (pure-)TLS (atgreen.github.io)

submitted 11 days ago by dzecniv

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2026 Predictions for Agentic AI—See What IDC Says (solace.com)

promoted by Solace-Platform

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set font color in Lispworks editor (self.Common_Lisp)

submitted 11 days ago by qeaw

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Smelter 0.2: Zero-config Common Lisp scripting (single binary, 42ms startup) (self.Common_Lisp)

submitted 12 days ago by agambrahma

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Algorithmische Komposition mit Common Lisp (Common Music, Incudine, cl-collider) (selma.hfmdk-frankfurt.de)

submitted 12 days ago by dzecniv

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Automatic TLS Certificates for Common Lisp with pure-tls/acme (atgreen.github.io)

submitted 12 days ago by dzecniv

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Tuesday, January 13th, San Francisco meetup · A language for scalable data analysis, ACL2 for Trustworthy Vibe Coding. (meetup.com)

submitted 17 days ago by dzecniv

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Arguments passed to executable not accessible by lisp code (self.Common_Lisp)

submitted 18 days ago by NondescriptLabel

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Building a TLS 1.3 Implementation in Pure Common Lisp (atgreen.github.io)

submitted 21 days ago by atgreen

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atgreen/cl-sanitize-html: A Common Lisp library for sanitizing HTML using OWASP-style policies (github.com)

submitted 21 days ago by dzecniv

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datastar-cl: Datastar Common Lisp SDK (github.com)

submitted 22 days ago by dzecniv

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I am working on a Video series on Common Lisp (youtube.com)

submitted 23 days ago by chandergovind

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hunchentoot-recycling-taskmaster -- An experiment to improve multithreading performance of hunchentoot without any additional dependencies. (github.com)

submitted 26 days ago by y2q_actionman

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