1. CLM
    CLM is an interface to the Motif GUI toolkit
  2. clmath
    CLMATH is a modern re-packaging of an old Common Lisp scientific library by Gerald Roylance
  3. CLNUPlot
    CLNUPlot connects Common Lisp to GNUPlot
  4. cloak
    cloak is an experimental implementation of the JVM for SBCL on Linux/x86
  5. Clobber
    An ObjectStore which aims to be a simpler, more flexible, and more robust alternative to CommonLispPrevalence systems, especially cl-prevalence
  6. CLOCC
    The Common Lisp Open Code Collection contains Lisp code for various
  7. clocc-port
    CLOCC includes a library PORT which unifies many things across different implementations, such as socket interfaces, shell access, and gray streams
  8. clod
    CLOD is a Common Lisp doc-generator, similar to Albert, Cldoc and so on
  9. clods-export
    clods-export provides functionality for writing spreadsheet files in the OpenDocument Spreadsheet (.ods) file format
  10. CLOG
    CLOG is a GUI that uses web technology and also a web framework and includes a full Common Lisp IDE and GUI Builder