This library allows you to define custom indentation hints for your macros if the one recognised by SLIME automatically produces unwanted results.

Plump is a parser for HTML/XML-like documents, focusing on being lenient towards invalid markup. It can handle things like invalid attributes, bad closing tag order, unencoded entities, inexistent tag types, self-closing tags and so on. It parses documents to a class representation and offers a small set of DOM functions to manipulate it. It can be extended to parse to your own classes.

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

SEEDABLE-RNG provides a convenient means of generating random numbers that are seedable with deterministic results across hardware and Common Lisp implementations.

Forge is a generic build system. Refer to documentation for the specific kind of project you're building to get the full picture.

This library provides a macroexpand-all function that calls the implementation specific equivalent.

This is a portability library that allows one to fully override the standard debugger provided by their Common Lisp system for situations where binding *debugger-hook* is not enough -- most notably, for break.

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

This is a Common Lisp package for hash table creation with flexible, extensible initializers.

This system is an implementation of the Common Lisp type system; particularly cl:typep and cl:subtypep.

This is a small library to display a native GUI message box. This can be useful to show error messages and other informational pieces should the application fail and be unable to do so using its standard UI.

Support library for numcl that provides Julia-like runtime parametric type correctness in Common Lisp. It is based on CLtL2 extensions.

This package provides a robust CSV parser and printer that tries to follow the fine print of de facto standards. It can be configured to choose which standard exactly.

This package is a geospatial library, based on cl-wkb, that implements the OGC Well-Known Binary geographic geometry data model with PostGIS 3d, 4d extensions, and provides WKB and EWKB encoding and decoding functionality.

IOlib is to be a better and more modern I/O library than the standard Common Lisp library. It contains a socket library, a DNS resolver, an I/O multiplexer(which supports select(2), epoll(4) and kqueue(2)), a pathname library and file-system utilities.

This is a common lisp library to easily pluralize and singularize English and Portuguese words. This is a port of the ruby ActiveSupport Inflector module.

RUTILS is a syntactic utilities package for Common Lisp.

defclass-star provides defclass* and defcondition* to simplify class and condition declarations. Features include:

• Automatically export all or select slots at compile time.

• Define the :initarg and :accessor automatically.

• Specify a name transformer for both the :initarg and :accessor, etc.

• Specify the :initform as second slot value.

See https://common-lisp.net/project/defclass-star/configuration.lisp.html for an example.

System-Load is a Common Lisp library for accessing the system's CPU and memory usage.

This package parses and prints dates in RFC-1123 format.

Flute is an easily composable HTML5 generation library in Common Lisp.

This library provides payment API wrappers over BTCPay, Paypal, and Stripe.

This is a (currently) brief but usable wrap for SDL2_image.

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