| Developer(s) | Clozure Associates |
|---|---|
| Stable release | 1.12.2[1]
/ August 8, 2023 |
| Operating system | Linux, Solaris, FreeBSD, Mac OS X, Microsoft Windows |
| Platform | Cross-platform |
| Available in | Common Lisp |
| Type | IDE, Compiler and runtime |
| License | Apache 2[2] since Jan 2016, earlier version is licensed under LGPL 2.1. |
| Website | ccl |
Clozure CL (CCL) is a Common Lisp implementation. It implements the full ANSI Common Lisp standard with several extensions (CLOS MOP, threads, CLOS conditions, CLOS streams, ...). It contains a command line development environment, an experimental integrated development environment (IDE) for Mac OS X using the Hemlock editor, and can also be used with SLIME (a Common Lisp development environment for GNU Emacs). Clozure CL is open source and the project is hosted by Clozure Associates.