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

CXML does an excellent job at parsing XML elements, but what do you do when you have a XML file that's larger than you want to fit in memory, and you want to extract some information from it? Writing code to deal with SAX events, or even using Klacks, quickly becomes tedious. cl-xmlspam (for XML Stream PAttern Matcher) is designed to make it easy to write code that mirrors the structure of the XML that it's parsing. It also makes it easy to shift paradigms when necessary - the usual Lisp control constructs can be used interchangeably with pattern matching, and the full power of CXML is available when necessary.

Aims to be fast, modular, cachable and concise. It does so by defining each tag as a macro which expands to code printing the respective HTML source. Also employs a DSL for element attributes.

This package defines a simple extensible protocol for computing a guess using advisors.

Convenient macros for common lambda patterns.

PicoLisp is a programming language, or really a programming system, including a built-in database engine and a GUI system.

Roswell started out as a command-line tool with the aim to make installing and managing Common Lisp implementations really simple and easy. Roswell has now evolved into a full-stack environment for Common Lisp development, and has many features that makes it easy to test, share, and distribute your Lisp applications.

Roswell is still in beta. Despite this, the basic interfaces are stable and not likely to change.

ASDF is what Common Lisp hackers use to build and load software. It is the successor of the Lisp DEFSYSTEM of yore. ASDF stands for Another System Definition Facility.

s7 is a Scheme interpreter intended as an extension language for other applications. It exists as just two files, s7.c and s7.h, that may be copied into the source tree of another application. There are no libraries, no run-time init files, and no configuration scripts. It can also be built as a stand-alone REPL interpreter.

jpm is the Janet Project Manager tool. It is a build tool and its main uses are installing dependencies, compiling C/C++ to native libraries, and other management tasks for Janet projects.

Clasp is a new Common Lisp implementation that seamlessly interoperates with C++ libraries and programs using LLVM for compilation to native code. This allows Clasp to take advantage of a vast array of preexisting libraries and programs, such as out of the scientific computing ecosystem. Embedding them in a Common Lisp environment allows you to make use of rapid prototyping, incremental development, and other capabilities that make it a powerful language.

Lush is an object-oriented Lisp interpreter/compiler with features designed to please people who want to prototype large numerical applications. Lush includes an extensive library of vector/matrix/tensor manipulation, numerous numerical libraries (including GSL, LAPACK, and BLAS), a set of graphic functions, a simple GUI toolkit, and interfaces to various graphic and multimedia libraries such as OpenGL, SDL, Video4Linux, and ALSA (video/audio grabbing), and others. Lush is an ideal frontend script language for programming projects written in C or other languages. Lush also has libraries for Machine Learning, Neural Nets and statistical estimation.

Steel Bank Common Lisp (SBCL) is a high performance Common Lisp compiler. In addition to the compiler and runtime system for ANSI Common Lisp, it provides an interactive environment including a debugger, a statistical profiler, a code coverage tool, and many other extensions.

MDL (the MIT Design Language) is a descendant of Lisp. It was originally developed in 1971 on the PDP-10 computer under the Incompatible Timesharing System (ITS) to provide high level language support for the Dynamic Modeling Group at MIT's Project MAC. Infocom built the original PDP-10 Zork in MDL and their later ZIL (Zork Implementation Language) was based on a subset of MDL. Confusion is a MDL interpreter that works just well enough to play the original mainframe Zork all the way through.

carp is a Lisp-like programming language that compiles to C. It features inferred static typing, macros, automatic memory management without a garbage collector, a REPL, and straightforward integration with code written in C.

GCL is an implementation of the Common Lisp language. It features the ability to compile to native object code and to load native object code modules directly into its lisp core. It also features a stratified garbage collection strategy, a source-level debugger and a built-in interface to the Tk widget system.

GNU CLISP is an implementation of ANSI Common Lisp. Common Lisp is a high-level, object-oriented functional programming language. CLISP includes an interpreter, a compiler, a debugger, and much more.

TXR is a general-purpose, multi-paradigm programming language. It comprises two languages integrated into a single tool: a text scanning and extraction language referred to as the TXR Pattern Language (sometimes just "TXR"), and a general-purpose dialect of Lisp called TXR Lisp. TXR can be used for everything from "one liner" data transformation tasks at the command line, to data scanning and extracting scripts, to full application development in a wide-range of areas.

Clozure CL (often called CCL for short) is a Common Lisp implementation featuring fast compilation speed, native threads, a precise, generational, compacting garbage collector, and a convenient foreign-function interface.

This tool generates Lisp images that can embed the provided systems and make for REPLs that start blazing fast.

• It’s portable and should work with any compiler.

• It works for any REPL.

• It allows you to include arbitrary libraries.

Buildapp is an application for SBCL or CCL that configures and saves an executable Common Lisp image. It is similar to cl-launch and hu.dwim.build.

Easy ISLISP (eisl) is an implementation of ISLisp which includes a compiler as well as an interpreter.

s7 is a Scheme interpreter intended as an extension language for other applications. It exists as just two files, s7.c and s7.h, that may be copied into the source tree of another application. There are no libraries, no run-time init files, and no configuration scripts. It can also be built as a stand-alone REPL interpreter.

Janet is a functional and imperative programming language. It can be used for rapid prototyping, dynamic systems, and other domains where dynamic languages shine. You can also add Janet scripting to an application by embedding a single C file and two headers. It can be easily ported to new platforms. The entire language (core library, interpreter, compiler, assembler, PEG) is less than 1MB.