CL implementation, runs on most major Unix platforms, mainly conforms to ANSI CL standard; fast compiler outputs native code, of near C speed; powerful module system, data structures. [Freeware]

ANSI Common Lisp implementation: descriptions, documents, FAQs, downloads, links, developers.

Interpreter and FASL compiler, portable ANSI Common Lisp implementation, CLtL2 conformant, available for many platforms; multilingual user interface. [Open Source, GPL]

ANSI CL and IDE with cross-platform GUI tools for Linux, Mac OS X, Unix, Windows. Related products and services. Free and commercial versions.

Object-oriented language for researchers, experimenters, engineers, for large-scale numerics and graphics. Merges 3 languages: (1) weakly-typed, garbage-collected, dynamically scoped, interpreted language with Lisp syntax, (2) strongly-typed, lexicall...

Applicative Common Lisp, multipurpose system. Most common uses: language for programming, specification, modeling; a formal mathematical logic, semi-automatic theorem prover. [Open Source, GPL]

Makes Macintosh Common Lisp, MCL: for 68k, PowerPC; compiles to native code, supports threads, integrates well into Mac OS, fun; Common Lisp Interface Manager, CLIM: platform independent user interface system, to target other Lisp platforms.

Compiler and runtime system for ANSI CL. Has interactive environment including an integrated native compiler, debugger, many extensions; runs on many platforms. [Open Source, GPL]

An open-sourced Common Lisp implementation for LinuxPPC.

World Wide Web server implemented in CL; goal: to rapidly prototype, smoothly evolve experimental, novel, or complex applications for the WWW. [Open Source]