CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible. Interpreter, compiler, debugger, CLOS, MOP, FFI, Unicode, sockets, CLX. UI in English, German, French, Spanish, Dutch, Russian, and Danish.


  • interpreter
  • compiler
  • debugger
  • CLOS
  • MOP
  • FFI
  • Unicode
  • CLX
  • i18n
  • sockets

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User Reviews

  • I am using CLISP in production environment. We capture leads from a website into encrypted .DATA files by using LISP. It works with CLISP without problems. The developers are friendly and supportive. I just wish that development would be on a website without javascript and bloated Sourceforge stuff. GNU offers that for GNU projects, and CLISP is GNU project.

  • Better than xlisp and does NOT destoy my path variable (Windows 10 Pro x64) Support 1 --> Build from 2010

  • Can confirm that on Windows 10 64bit the Path Variable needed by Windows and all cmd programs on the system was destroyed.

  • It wipes out your PATH variable. Backup before using this.

    1 user found this review helpful.
  • I would recommend against using this Common Lisp implementation. No releases for going on five years, unlike Clozure Common Lisp (CCL) and Steel Bank Common Lisp (SBCL), which are much more actively maintained. If something goes wrong with one of those, you have a much better chance of seeing a fix.

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