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Clozure Common Lisp VS CMU Common Lisp

Compare Clozure Common Lisp VS CMU Common Lisp and see what are their differences

Clozure Common Lisp logo Clozure Common Lisp

Clozure CL (often called CCL for short) is a free Common Lisp implementation with a long history.

CMU Common Lisp logo CMU Common Lisp

CMUCL is a high-performance, free Common Lisp implementation.
  • Clozure Common Lisp Landing page
    Landing page //
    2019-04-15
  • CMU Common Lisp Landing page
    Landing page //
    2019-04-15

Clozure Common Lisp features and specs

  • High Performance
    Clozure Common Lisp is known for its high performance, especially in numeric computations and complex applications, due to its efficient compiler and runtime system.
  • Cross-platform Support
    CCL runs on multiple platforms including macOS, Linux, and Windows, facilitating development across different operating systems.
  • Dynamic Typing and Flexibility
    CCL, like other Lisp dialects, offers dynamic typing and flexibility which allows developers to write code that can be easily modified and extended.
  • Interactivity
    CCL provides a powerful interactive development environment with a Read-Eval-Print Loop (REPL), allowing developers to test and debug code on the fly.
  • Compatibility with Common Lisp
    Being a comprehensive implementation of Common Lisp, CCL supports a wide range of Lisp features, making it compatible with existing Common Lisp codebases.
  • Active Community
    CCL has an active community that contributes to its development and support, resulting in a wealth of libraries and resources.

Possible disadvantages of Clozure Common Lisp

  • Limited GUI Libraries
    Clozure Common Lisp's support for graphical user interfaces is limited compared to other platforms, which may require additional effort for developing desktop applications.
  • Smaller User Base
    Compared to more mainstream languages like Python or Java, CCL has a smaller user base, which may result in less community support and fewer third-party libraries.
  • Steep Learning Curve
    As with many Lisp dialects, CCL can have a steep learning curve for developers unfamiliar with Lisp syntax and concepts.
  • Less Documentation
    Although there is documentation available, it may not be as extensive or detailed as that for more widely-used languages, potentially hindering new users.
  • Interoperability Challenges
    While CCL can interoperate with C and other languages, setting this up can be complex and may pose challenges for developers needing seamless integration.

CMU Common Lisp features and specs

  • High-Performance Compiler
    CMU Common Lisp features an efficient native code compiler that can produce highly optimized code for the supported platforms, enhancing performance for computationally-intensive applications.
  • Extensive Library Support
    Includes a wide variety of libraries, providing functionality ranging from numerical computing to system interfacing, which allows developers to implement diverse applications without relying heavily on external packages.
  • Strong Typing System
    CMUCL provides a strong type system with good error detection and optimization capabilities that can help catch errors at compile-time and improve runtime performance.
  • Garbage Collection
    It includes an efficient garbage collector that manages memory naturally, minimizing manual intervention and reducing memory leaks and fragmentation in applications.
  • Comprehensive Integrated Development Environment
    CMUCL comes with an integrated environment which includes a debugger, inspector, and an interface for efficient development and troubleshooting.

Possible disadvantages of CMU Common Lisp

  • Limited Platform Support
    The number of platforms explicitly supported by CMUCL is limited, which can be a constraint for developers who need to work across multiple or newer systems.
  • Steep Learning Curve
    Newcomers might find CMUCL challenging due to its complexity and the intricate features specific to Lisp, requiring a steep learning curve compared to more modern languages and environments.
  • Outdated Documentation
    Some users find the documentation to be outdated or not comprehensive enough, making it difficult to get started and fully leverage the system's capabilities.
  • Limited Community Support
    The user and contributor community for CMUCL is relatively small compared to other languages and projects, which may result in less frequent updates and fewer third-party resources.
  • Complex Setup Process
    Initial setup and configuration of CMUCL can be cumbersome, especially for users not familiar with Lisp environments or those who require specific custom configurations.

Category Popularity

0-100% (relative to Clozure Common Lisp and CMU Common Lisp)
Programming Language
43 43%
57% 57
IDE
46 46%
54% 54
OOP
36 36%
64% 64
Text Editors
44 44%
56% 56

User comments

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Social recommendations and mentions

Based on our record, Clozure Common Lisp seems to be more popular. It has been mentiond 6 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Clozure Common Lisp mentions (6)

  • Graphics Livecoding in Common Lisp
    Unfortunately CCL is Intel only on macOS. (macOS is not on the the main page https://ccl.clozure.com) Otherwise this is the one I would use as it has good Cocoa interoperability. - Source: Hacker News / 10 days ago
  • The IDEs we had 30 years ago and we lost
    The descendant of CCL runs on modern Intel Macs. (It also runs on Linux and Windows but without the IDE.) The modern IDE is quite a bit different from the original. In particular, it no longer has the interface builder. But it's still pretty good. It is now called Clozure Common Lisp (so the acronym is still CCL) and you can find it here: https://ccl.clozure.com/ If you want to run the original that is a bit... - Source: Hacker News / over 1 year ago
  • The Saga of the Closure Compiler, and Why TypeScript Won
    Just for fun there is also Clozure Common Lisp. https://ccl.clozure.com/. - Source: Hacker News / over 1 year ago
  • Consuming HTTP endpoint using Common Lisp
    I have decided it is time to have some fun and use Common Lisp to create algorithm representation that deals with parallel execution. For this I decided to use Clozure common lisp, put basic Qucklisp there and load some libraries to do this. - Source: dev.to / over 2 years ago
  • Corman Lisp development environment for MS Windows
    CCL also supports windows: https://ccl.clozure.com/. - Source: Hacker News / over 2 years ago
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CMU Common Lisp mentions (0)

We have not tracked any mentions of CMU Common Lisp yet. Tracking of CMU Common Lisp recommendations started around Mar 2021.

What are some alternatives?

When comparing Clozure Common Lisp and CMU Common Lisp, you can also consider the following products

Steel Bank Common Lisp - Steel Bank Common Lisp (SBCL) is a high performance Common Lisp compiler.

Hy - Hy is a wonderful dialect of Lisp that’s embedded in Python.

CLISP - CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible.

ManKai Common Lisp - ManKai Common Lisp (MKCL) aims to be a full implementation of the Common Lisp language in...

Armed Bear Common Lisp - Armed Bear Common Lisp (ABCL) is a full implementation of the Common Lisp language featuring both...

Racket Lang - Racket (formerly PLT Scheme) is a modern programming language in the Lisp/Scheme family, suitable...