It can sometimes be useful to be able to parse chemical compounds in a user-friendly syntax into easy-to-manipulate s-expressions. You also want to be able to go in reverse. You could probably write your own parser — or you could just install the chemical-compounds package.

This Common Lisp library provides an implementation of in-memory input streams, output streams and io streams for any type of elements.

This package allows flexible specification of package-local preferences.

Authentic provides a light-weight and extendible solution to user/password management for Common Lisp applications. It has features such as safe password storage in a database, password reset, user confirmation tokens, and user authentication.

This package provides Common Lisp FFI bindings for xkbcommon (libxkbcommon) using cffi-grovel.

This package creates GraphViz DOT files from an equivalent s-expression representation.

It's very basic implementation of channels and queue for Common Lisp.

This is a Common Lisp library for simplifying packaging and loading of compiled foreign library collection.

This is ZS3, a library for working with Amazon's Simple Storage Service (S3) and CloudFront service from Common Lisp.

Cl-tga was written to facilitate loading .tga files into OpenGL programs. It's a very simple library, and, at the moment, only supports non-RLE encoded forms of the files.

Portability library for IEEE float features that are not covered by the Common Lisp standard.

This package provides a Common Lisp Twitter client featuring full API coverage.

CL-UNICODE is a portable Unicode library Common Lisp, which is compatible with perl. It is pretty fast, thread-safe, and compatible with ANSI-compliant Common Lisp implementations.

This Common Lisp package offers functions for parsing and formatting decimal numbers. The package's main interface are the functions parse-decimal-number and format-decimal-number. The former is for parsing strings for decimal numbers and the latter for pretty-printing them as strings.

This package provides a macro that allows foreign functions to access the contents of the array at a given pointer, using the best available method given the Common Lisp implementation.

This is an implementation of a Markdown parser in Common Lisp.

This is a trivial utility for distinguishing between a process running in a real terminal window and a process running in a dumb one, e.g. emacs-slime.

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.

CL-FAST-ECS is a Common Lisp library providing an implementation of the ECS pattern, primarily focused on speed and interactive development.

ECS is an architectural data-oriented design pattern that allows for the effective processing of a large number of in-game objects while keeping the code and data separated. This provides flexibility in the way that game objects are built at runtime.

trivial-garbage provides a portable API to finalizers, weak hash-tables and weak pointers on all major implementations of the Common Lisp programming language.

This package provides a PNG Common Lisp system to operate with Portable Network Graphics file format.

Simple scheme to classify file types in a hierarchical fashion.

This package provides the Common Lisp part of the emacs-slite test runner.

This package provides a canonical way of converting class designators to classes.