This Lisp development system is inclusive of both console and IDE interpreter and compiler. It permits the creation of EXE-files and supports CLOS. This implementation of Lisp is only 1MB in size, making it the smallest conformant implementation of standard Lisp.

One of its strongest features is its support for CLOS (Common Lisp Object System). This means that Common Lisp development system allows users to create objects with advanced functionality and can be used in object-oriented programming.
One notable advantage of this development system is its size. This system is the smallest implementation of standard Lisp, which only has a 1MB binary code. This means that programmers who are developing projects in Common Lisp won't have to worry about their devices running slowly due to heavy software.
Overall, the Common Lisp development system is a fantastic program that provides many options and benefits to developers. With its support for CLOS and ability to create EXE-files, it's definitely worth considering to those who are looking for a powerful Lisp development system that is compact and user-friendly.
Version 4.33:
source code made available
project is under GPL