This Common Lisp library provides optimized byte-swapping primitives. The library can change endianness of unsigned integers of length 1/2/4/8. Very useful in implementing various network protocols and file formats.

s-sysdeps is an abstraction layer over platform dependent functionality. This simple package is used as a building block in a number of other projects.

s-sysdeps abstracts:

• managing processes,

• implementing a standard TCP/IP server,

• opening a client TCP/IP socket stream,

• working with process locks.

Xmls is a self-contained, easily embedded parser that recognizes a useful subset of the XML spec. It provides a simple mapping from XML to Lisp structures or s-expressions and back.

Cl-reexport makes a package reexport symbols which are external symbols in other Common Lisp packages. This functionality is intended to be used with (virtual) hierarchical packages.

Dexador is yet another HTTP client for Common Lisp with neat APIs and connection-pooling. It is meant to supersede Drakma.

LLA is a high-level Common Lisp library built on BLAS and LAPACK, but providing a much more abstract interface with the purpose of freeing the user from low-level concerns and reducing the number of bugs in numerical code.

My Way is a Sinatra-compatible URL routing library.

This is a binding to the libyaml library. It's not meant as a full library for YAML, just a bare binding with a couple of utility macros. For a YAML parser and emitter using this, check out cl-yaml.

CF is a Common Lisp library for doing computations using continued fractions.

This package provides a portability layer for the extensible sequences standard extension to Common Lisp. Extensible sequences allow you to create your own sequence types that integrate with the rest of the functions and operations that interact with sequences.

This package provides CFFI bindings and interface to Allegro 5 game developing library for Common Lisp.

This Common Lisp library provides functions for lzip (LZMA) compression/decompression using bindings to the lzlib C library.

This package provides the terminal-size:size function to get the size of the terminal from Common Lisp.

This package provides a DSL for array slices in Common Lisp.

This is a standalone promise implementation for Common Lisp. It is the successor to the now-deprecated cl-async-future project.

This library allows for cooperative multitasking with help of cl-cont for continuations. It tries to mimic the API of bordeaux-threads as much as possible.

This is a simple Common Lisp library to evaluate some forms in parallel.

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.

This package provides a Common Lisp templating system based on Python Django with a syntax similar to Python Jinja2.

The Type-Templates library allows you to define types and “template functions” that can be expanded into various type-specialized versions to eliminate runtime dispatch overhead. It was specifically designed to implement low-level numerical data types and functionality.

This package provides a set of bindings and utilities for accessing the OpenGL (Mesa), GLU and GLUT (FreeGLUT) APIs using CFFI.

with-user-abort is a Common Lisp portability library providing a like-named macro that catches the SIGINT signal.

cl-ansi-text provides utilities which enable printing to an ANSI terminal with colored text. It provides the macro with-color which causes everything printed in the body to be displayed with the provided color. It further provides functions which will print the argument with the named color.

This is a bindings library to libout123 which allows easy cross-platform audio playback.