THE-COST-OF-NOTHING is a library for measuring the run time of Common Lisp code. It provides macros and functions for accurate benchmarking and lightweight monitoring. Furthermore, it provides predefined benchmarks to determine the cost of certain actions on a given platform and implementation.

Vom is a logging library for Common Lisp. It's goal is to be useful and small. It does not provide a lot of features as other loggers do, but has a small codebase that's easy to understand and use.

DEFPACKAGE-PLUS is an extensible DEFPACKAGE variant with predictable cross-platform behavior and some utilities useful for versioning.

cl-css-lite is a library for generating CSS from an s-exp based syntax. When compiled with Parenscript loaded in the Lisp image, it also provides the same CSS generation facilities in Parenscript-generated JavaScript code.

CL-Ledger is a Common Lisp port of the Ledger double-entry accounting system.

A library and command line utility to automatically indent Common Lisp source files.

Library to fuzzily parse time and date strings into a universal-time timestamp.

simple-neural-network is a Common Lisp library for creating, training and using basic neural networks. The networks created by this library are feedforward neural networks trained using backpropagation.

This package provides a CONSPACK implementation for Common Lisp.

Optima is a fast pattern matching library which uses optimizing techniques widely used in the functional programming world.

Tripod is a Common Lisp web server aiming to ease plain text, HTML, and Gopher website hosting.

This library provides a modern project skeleton generator. In contract with other generators, CL-Project generates one package per file and encourages unit testing by generating a system for unit testing, so you can begin writing unit tests as soon as the project is generated.

This is a very simple color library for Common Lisp, providing

• Types for representing colors in HSV and RGB spaces.

• Simple conversion functions between the above types (and also hexadecimal representation for RGB).

• Some predefined colors (currently X11 color names – of course the library does not depend on X11).Because color in your terminal is nice.

This library is no longer supported by its author.

Simple and fast marshalling of Lisp datastructures. Convert any object into a string representation, put it on a stream an revive it from there. Only minimal changes required to make your CLOS objects serializable.

File-Notify is a Common Lisp library for getting notifications for file accesses and changes.

This package provides GNU gettext completely implemented in Common Lisp without any C library bindings.

This library defines most Common Lisp standard macros that can be defined in a portable way and that can generate portable code. Some of these macros may not be good enough as the final version for a typical implementation, but they will work.

This is a Common Lisp library for solving linear programming problems.

Retrospectiff is a common lisp library for reading and writing images in the TIFF (Tagged Image File Format) format.

zsort is a collection of portable sorting algorithms. Common Lisp provides the sort and stable-sort functions but these can have different algorithms implemented according to each implementation. Also, the standard sorting functions might not be the best for a certain situations. This library aims to provide developers with more options.

Utility library for handling bit vectors, bit vector arithmetic, and universal integer type conversions between bit-vectors, byte-vectors, octals, decimals, and hexadecimal notation.

fare-utils is a small collection of utilities. It contains a lot of basic everyday functions and macros.

This is a Common Lisp library for creating PNG images.

GECO (Genetic Evolution through Combination of Objects) is an extensible, object-oriented framework for prototyping genetic algorithms in Common Lisp.