---
key: pl/clozure
kind: plang
name: "Clozure CL"
url: https://plangs.page/clozure
---

# Clozure CL

> Free Common Lisp implementation offering full ANSI compliance and several extensions.

Free implementation of Common Lisp, providing a complete ANSI Common Lisp standard with various extensions such as CLOS MOP, threads, and streams. It includes a command-line development environment and an IDE for macOS using the Hemlock editor, delivering fast compilation, native threads, and a garbage collector. It is open-source, maintained by Clozure Associates.

## Facts

- Appeared: 2000
- Homepage: http://clozure.com/clozurecl.html
- GitHub: https://github.com/Clozure/ccl

## Relationships

### Paradigms

- [Functional](https://plangs.page/paradigm/functional)
- [General-Purpose](https://plangs.page/paradigm/general-purpose)
- [Multi](https://plangs.page/paradigm/multi)
- [Object-Oriented](https://plangs.page/paradigm/oop)

### Platforms

- [Apple](https://plangs.page/platform/apple)
- [BSD](https://plangs.page/platform/bsd)
- [Cross-Platform](https://plangs.page/platform/cross)
- [Linux](https://plangs.page/platform/linux)
- [Windows](https://plangs.page/platform/windows)

### Type Systems

- [Dynamic](https://plangs.page/type-system/dynamic)

### Implements

- [Common Lisp](https://plangs.page/common-lisp)

### Written With

- [C](https://plangs.page/c)

### Licenses

- [Apache 2.0](https://plangs.page/license/apache)

### Tags

- [Compiler](https://plangs.page/tag/compiler)
- [Editor](https://plangs.page/tag/editor)