Eggs Unlimited (release branch 6)

Last updated: Mon Oct 19 00:15:03 2026

A library of extensions for the CHICKEN Scheme system.

Installation

Just enter

  chicken-install EXTENSIONNAME

This will download anything needed to compile and install the library. If your extension repository is placed at a location for which you don't have write permissions, then run chicken-install with the -sudo option or run it as root (not recommended).

You can obtain the repository location by running

  csi -R chicken.platform -p "(repository-path)"

If you only want to download the extension source code, pass the -retrieve option to chicken-install:

  chicken-install -retrieve EXTENSIONNAME

For more information, enter

  chicken-install -help

List of available eggs

Categories

Language extensions

Name Description License Author Maintainer Version
begin-syntax Convenience macro for inline syntax expansion BSD Evan Hanson 0.2.1
brev-separate Hodge podge of macros and combinators BSD 1-clause Idiomdrottning 1.100
char-set-literals A reader extension providing Gauche style literals for SRFI-14 char-sets BSD Moritz Heidkamp The CHICKEN Team 0.5
chibi-config Chibi Scheme's config library BSD Alex Shinn Diego A. Mundo 0.1.1
chibi-generic Chibi Scheme's simple generic function interface BSD Alex Shinn Diego A. Mundo 0.1.3
clojurian Syntax and utility functions inspired by Clojure BSD Moritz Heidkamp 4
datatype A facility for creating and deconstructing variant records (from EOPL) BSD felix winkelmann 1.7
fast-generic fast-generic functions BSD felix winkelmann 0.7
foreigners Foreign helper macros BSD Jim Ursetto 1.6
hascheme Implictly Lazy Scheme embedded into Scheme BSD 0-clause Peter McGoron 0.3.0
make The PLT 'make' macro LGPL-2.0+ PLT, adapted to CHICKEN by Felix Winkelmann 1.10
matchable Hygienic MATCH replacement Public Domain Alex Shinn 1.2
matchertext Reader extension for embedding matchertext as string literals. GPLv3 Hernán Ibarra Mejia 2.0
miscmacros Various helper macros BSD felix winkelmann 1.3
module-declarations Module declarations BSD Evan Hanson 0.3.1
moremacros More miscellaneous macros BSD Kon Lovett 3.1.2
prefixes prefixing in er-macro-transformers made easy BSD Juergen Lorenz 2.0
record-variants Optimized record access BSD Jim Ursetto 1.2
regex-case Provides an easy to use <code>case</code> construct for regular expression matching BSD felix 1.3
srfi-105 SRFI-105 - curly infix expressions MIT David A. Wheeler Diego A. Mundo 0.1.8
srfi-158 SRFI 158: Generators and Accumulators MIT Shiro Kawa, John Cowan, Thomas Gilray Vasilij Schneidermann 1.0
srfi-160 SRFI 160: Homogeneous numeric vector libraries MIT John Cowan, Shiro Kawai Diego A. Mundo 0.6.0
srfi-197 SRFI-197: Pipeline Operators MIT Adam Nelson Diego A. Mundo 0.2.1
srfi-232 SRFI 232: Flexible curried procedures MIT Wolfgang Corcoran-Mathe Wolfgang Corcoran-Mathe 0.2
srfi-48 SRFI-48: Intermediate Format Strings MIT Ken Dickey Wolfgang Corcoran-Mathe 1.1.0
srfi-5 SRFI-5: A compatible let form with signatures and rest arguments MIT Andy Gaynor Wolfgang Corcoran-Mathe 0.4.1
typeclass Type classes MIT Andre van Tonder Ivan Raikov 1.6
varg A template for defining dynamic arguments procedure MIT riku-ri riku-ri 1.1.2

Graphics

Name Description License Author Maintainer Version
cairo Chicken bindings for Cairo, a vector graphics library LGPL-2.1 Michael Bridgen and Tony Garnock-Jones Ivan Raikov 1.3
color The SLIB color library BSD Aubrey Jaffer Erik Falor 1.2
ezxdisp A simple 2D and 3D graphics library for X11 LGPL-2 n-sibata and Morihiko Tamai Ivan Raikov 3.2
ggplot A declarative plotting system based on Grammar of Graphics. GPL-3 Ivan Raikov 1.4
leptonic Bindings for image-processing library 'leptonica' BSD-2 Jules Altfas 0.2.4
pdf A library for PDF generation. BSD Marc Battyani and Bruce Butterfield Ivan Raikov 2.2
pdf-truetype TrueType font embedding for the pdf egg. BSD Ivan Raikov 1.0
raylib Bindings for raylib: A simple and easy-to-use library to enjoy videogames programming MIT Meowster 1.3.0
s9fes-char-graphics Scheme 9 from Empty Space Char Graphics Public Domain Kon Lovett 1.22.0
s9fes-char-graphics-shapes Scheme 9 from Empty Space Char Graphics Shapes Public Domain Kon Lovett 1.7.1
slib-charplot The SLIB character plotting library Artistic Aubrey Jaffer Kon Lovett 1.4.4
x11-colors named standard colors as available in X11 BSD felix winkelmann Erik Falor 1.2.1

Debugging tools

Name Description License Author Maintainer Version
tcprepl Simple networked REPL over TCP BSD Kristian Lein-Mathisen 6.1.0

Logic programming

Name Description License Author Maintainer Version
amb The non-deterministic backtracking ambivalence operator BSD thomas chust Kon Lovett 3.0.11
mini-kanren Packages the canonical miniKanren implementation for CHICKEN Scheme. MIT William Byrd, Dan Friedman, Oleg Kiselyov Jeremy Steward 1.3.2
tiny-prolog Tiny PROLOG interpreter. BSD Nils M Holm Ivan Raikov 2.2

Networking

Name Description License Author Maintainer Version
address-info Network address information access BSD Thomas Chust 1.0.6
fcp Very basic interface to freenet FCP BSD Matt Welland v1.2
http-client High-level HTTP client library BSD Peter Bex 2.0.1
json-rpc A JSON RPC library for R7RS scheme. MIT Ricardo G. Herdt 0.6.5.2
memcached Client interface to the Memcached protocol. BSD Ivan Raikov and Seth Alves 1.6
mpi Message-passing Interface (MPI) GPL-3 Ivan Raikov 2.7
openssl Bindings to the OpenSSL SSL/TLS library BSD Thomas Chust Vasilij Schneidermann 2.2.8
sendfile Sending a file over the network BSD David Krentzlin 3.0
smtp Parser combinators and state machine for Simple Mail Transfer Protocol (RFC 5321). GPL-3 Ivan Raikov 5.3

Input/Output

Name Description License Author Maintainer Version
breadline Bindings to readline GPL-3 Vasilij Schneidermann 1.0.3
chibi-term Chibi Scheme's term library BSD Alex Shinn Diego A. Mundo 0.1.0
endian-port An I/O port that supports different endian formats. GPL-3 Ivan Raikov, partially reimplemented by Shawn Rutledge 5.0
fmt Combinator Formatting BSD Alex Shinn 0.8.14
format Common-Lisp style formatted output Public Domain Dirk Lutzebeck Felix Winkelmann, Kon Lovett 3.2.4
inotify Bindings to inotify MIT Vasilij Schneidermann 2.0
linenoise A minimal, zero-config, BSD licensed, readline replacement. BSD Salvatore Sanfilippo Christian Kellermann 1.1
simple-logger A very simple logger BSD Mario Domenech Goulart 1.0.1
srfi-38 SRFI 38: External representation for data with shared structure Public Domain Alex Shinn Wolfgang Corcoran-Mathe 0.10
stty stty-style interface to termios BSD Alex Shinn Erik Falor 1.0
wl-pprint Wadler/Leijen-style pretty-printing combinator library MIT Ivan Raikov 1.0

Databases

Name Description License Author Maintainer Version
leveldb Bindings to Google's LevelDB Key-Value Store BSD Kristian Lein-Mathisen 6.1.2
postgresql Bindings for PostgreSQL's C-api BSD Johannes Groedem Peter Bex 5.0.1
redis A Redis client library for Chicken Scheme BSD Daniel Ziltener 0.9
sql-null A convenience extension for representing SQL NULL values Public Domain Ivan Shmakov 2.2

OS interface

Name Description License Author Maintainer Version
dot-locking advisory locking mechanism based on standard file operations BSD Olin Shivers felix 0.5
locale Provides locale operations BSD Kon Lovett 0.10.1
posix-groups Access POSIX group information BSD The CHICKEN Team 0.3
posix-mq POSIX message queues API BSD Ivan Raikov 1.3
posix-shm POSIX shared memory API BSD Ivan Raikov 1.6
poule Manage pools of worker processes BSD Pietro Cerutti 0.1.3
scsh-process A reimplementation for CHICKEN of SCSH's process notation. BSD Peter Bex 1.7.2
xdg-basedir Implementation of the XDG Base Directory Specification BSD Mario Domenech Goulart 1.0.1

Interfacing to other languages

Name Description License Author Maintainer Version
bind Automatically generate bindings from C/C++ declarations public domain felix winkelmann 1.4
dollar FFI convenience macro BSD felix winkelmann and kon lovett 3.2.0
lazy-ffi A foreign function interface for lazy programmers BSD felix 1.8.7

Web programming

Name Description License Author Maintainer Version
awful awful provides an application and an extension to ease the development of web-based applications. BSD Mario Domenech Goulart 1.0.5
awful-main Turn awful web applications into static executables BSD Pietro Cerutti 0.3.1
awful-sse Server-Sent Events module for Awful BSD Arthur Maciel 0.4
colorize Colorize programming code as HTML MIT Brian Mastenbrook, converted to Scheme by Peter Bex Peter Bex 0.6
fancypants Automatic ASCII smart quotes and ligature handling for SXML BSD Peter Bex 0.6
html-parser A permissive, scalable HTML parser. BSD Alex Shinn 0.5.0
http-session Facilities for managing HTTP sessions BSD Mario Domenech Goulart 2.12
intarweb A more convenient HTTP library BSD Peter Bex 3.0.1
pebble Simple static site generator AGPL-3.0-only Diego A. Mundo 1.2.0
qwiki qwiki - the quick wiki BSD Peter Bex 2.4.2
spiffy A small but powerful web server BSD Felix Winkelmann Peter Bex 6.5.2
spiffy-cookies Procedures for managing cookies BSD Mario Domenech Goulart 1.3
spiffy-request-vars Easy access to variables from HTTP requests BSD Mario Domenech Goulart 0.20
spiffy-uri-match uri-match integration for spiffy BSD Moritz Heidkamp Vasilij Schneidermann 1.1
uri-common Parser for common URI schemes BSD Peter Bex 3.0
uri-generic URI generic syntax (RFC 3986) parsing and manipulation. BSD Ivan Raikov, Peter Bex, Seth Alves 4.0
uri-match A flexible URI matcher BSD Moritz Heidkamp Vasilij Schneidermann 1.0

XML processing

Name Description License Author Maintainer Version
doctype Exports strings corresponding to standard XML (XHTML, HTML) doctypes Public Domain Jim Ursetto 2.2
rss A RSS parser BSD felix winkelmann 1.8
ssax Oleg Kiselyov's XML parser Public Domain Oleg Kiselyov, ported to CHICKEN by Kirill Lisovsky, packaged as an extension by felix 5.1.2
sxml-serializer Serialize SXML to XML and HTML BSD Dmitry Lizorkin 0.6.1
sxml-transforms The SXML transformations (to XML, SXML, and HTML) from the SSAX project at Sourceforge Public Domain Oleg Kiselyov 1.5.0
sxpath The sxpath bits of sxml-tools from the SSAX project at Sourceforge Public Domain Oleg Kiselyov, Kirill Lisovsky, Dmitry Lizorkin 1.1

Documentation tools

Name Description License Author Maintainer Version
chalk Syntax for in-source documentation BSD Diego A. Mundo 1.0.2
chalk-bin Generate in-source documentation BSD Diego A. Mundo 1.0.3
chicken-doc Explore Chicken documentation locally BSD Jim Ursetto 0.7.1
chicken-doc-html Generate HTML from (svn)wiki SXML BSD Jim Ursetto 0.4.1
manual-labor Generate static HTML manual from wiki docs BSD Jim Ursetto 0.4
svnwiki-sxml Parse svnwiki to sxml BSD Jim Ursetto 0.3.1

Egg tools

Name Description License Author Maintainer Version
henrietta Serve extensions over HTTP BSD felix winkelmann 1.6
henrietta-cache Fetch and cache extensions from various sources for Henrietta to consume BSD Peter Bex 1.8
lay Lay eggs efficiently BSD Pietro Cerutti 0.4.0
pseudo-meta-egg-info Provide automatically generated release-info and a pseudo-"meta"-file for eggs in svn Public Domain Peter Bex 1.2
salmonella A tool for testing eggs BSD Mario Domenech Goulart 3.2.1
salmonella-diff A tool to diff salmonella log files BSD Mario Domenech Goulart 1.1.1
salmonella-html-report A tool to generate HTML ouput out of salmonella log files BSD Mario Domenech Goulart 1.7.2

Mathematical libraries

Name Description License Author Maintainer Version
blas An interface to level 1, 2 and 3 BLAS routines BSD felix Ivan Raikov 5.2
chibi-math Chibi Scheme's math library BSD Alex Shinn Diego A. Mundo 0.1.0
constructive-solid-geometry Construct three dimensional solids GPL-3 Michal Herko 0.1
fp-utils fp utilities BSD Kon Lovett 5.0.0
fx-utils fx utilities BSD Kon Lovett 5.0.0
math-utils Miscellaneous math utilities Public Domain Kon Lovett 1.19.0
mathh ISO C math functions and constants Public Domain Kon Lovett and john cowan 4.7.2
micro-stats Easily create micro-stats GPLv3 David Krentzlin Kon Lovett 0.7.2
nanograd Minimalistic automatic differentiation framework. LGPL-3 Ivan Raikov 3.2
nanograd-components Model components for nanograd. LGPL-3 Ivan Raikov 1.1
srfi-141 SRFI 141: Integer division BSD Taylor Campbell, John Cowan Wolfgang Corcoran-Mathe 1.1.0
srfi-143 SRFI 143: Fixnums MIT John Cowan Sergey Goldgaber 1.1.0
srfi-144 SRFI 144: Flonums MIT John Cowan Diego A. Mundo 0.1.4
srfi-278 Supplemental Numerics (includes complex hyperbolic functions) MIT Peter McGoron 1.0.0
statistics Statistics library GPL-3 Peter Lane Ivan Raikov 0.15
unitconv Conversion of units of measurement LGPL-3 Ivan Raikov 4.1

Object-oriented programming

Name Description License Author Maintainer Version
coops A featureful object system BSD Dorai Sitaram and felix winkelmann 1.6
coops-utils coops utilities BSD Kon Lovett 3.1.0
prometheus The Prometheus Object System. BSD Daniel Ziltener 1.0.1
yasos A very simple OOP system BSD Kenneth Dickey 1.15

Algorithms and data-structures

Name Description License Author Maintainer Version
array-morphisms Structure-preserving transformations between arrays. LGPL-3 Ivan Raikov 2.1
array-morphisms-blas System-BLAS-based backend for array-morphisms. LGPL-3 Ivan Raikov 1.0
array-morphisms-crunch Crunch-based array-morphisms kernels for BLAS, activation, convolution and optimizer. LGPL-3 Ivan Raikov 1.1
bitwise-utils Bitwise utilities Public Domain Kon Lovett 1.4.1
bloom-filter Bloom Filter BSD Kon Lovett 2.6.0
box Boxing BSD Kon Lovett 3.9.1
byte-sequence Byte array utility procedures for byte sequences. LGPL-3 Ivan Raikov 3.0
bytevector-utils Bytevector Utilities BSD Kon Lovett 1.0.1
cbor Concise Binary Object Representation (RFC 8949) with typed arrays (RFC 8746) MIT Ivan Raikov 1.0
chibi-diff Chibi Scheme's diff library BSD Alex Shinn Diego A. Mundo 0.1.1
chibi-edit-distance Chibi Scheme's edit-distance library BSD Alex Shinn Diego A. Mundo 0.1.0
cis Compact integer sets. LGPL-3 Ivan Raikov 1.5
coin-change Greedy solver for the coin change problem unlicense siiky 1.0.4
dataframe Tabular data structure for data analysis GPL-3 Ivan Raikov 1.0
defstruct A more convenient form of define-record BSD Dorai Sitaram 2.1
digraph Directed graph in adjacency list format. GPL-3 Ivan Raikov 2.1
disjoint-set Disjoint set implementation based on Scheme vectors and their indexes unlicense siiky 0.1.0
endian-sequence Endian-specific procedures for converting byte sequences to numeric values and vectors. GPL-3 Ivan Raikov 3.0
ftl Interface based sequence library LGPL-2.1 Sergei Egorov, partially reimplemented by felix winkelmann Felix Winkelmann 0.91
fusion-arrays Fusion arrays. GPL-3 Ivan Raikov 1.1
generalized-arrays Provides generalized arrays, intervals, and storage classes for CHICKEN Scheme. BSD-3 Jeremy Steward 2.3.0
graph-bfs Breadth-first search in a graph. GPL-3 Ivan Raikov 2.2
graph-cycles Enumerate all simple cycles in a graph. GPL-3 Ivan Raikov 2.1
graph-dfs Depth-first search in a graph. GPL-3 Ivan Raikov 2.1
graph-scc Compute strongly-connected components (SCC) of a graph. GPL-3 Ivan Raikov 2.1
hash-trie hash-trie MIT Taylor R. Campbell Kon Lovett 1.2.0
integer-map SRFI 224 integer mappings MIT Wolfgang Corcoran-Mathe Wolfgang Corcoran-Mathe 1.1.0
iset Integer sets BSD Alex Shinn 2.3.1
kd-tree K-D tree spatial indexing structure. GPL-3 Ivan Raikov 6.2
lazy-seq Clojure-like lazy sequences BSD Moritz Heidkamp 3
levenshtein Levenshtein edit distance BSD Kon Lovett 3.1.0
list-utils list-utils BSD Kon Lovett 3.4.0
llama Inference with Llama2 model. MIT Ivan Raikov 2.0
npdiff Compute the longest common subsequence of two sequences GPL-3 Ivan Raikov 3.1
object-evict Evict data to unmanaged memory BSD The CHICKEN Team 0.1.1
patch Simple source patch utility MIT Tony Sidaway Ivan Raikov 1.16
pserializer Portable serializer with SRFI-4, hash-table and compression support BSD Shiro Kawai, Ivan Raikov 1.0
quasiwalk A tree map that respects quote, quasiquote, and unquote BSD 1-clause Idiomdrottning 1.12
queues A queue data structure Public Domain Andrew Wilcox, ported to CHICKEN by felix 0.1
r6rs-bytevectors An implementation of r6rs bytevectors MIT William D Clinger Diego Mundo 0.1.8
random-mtzig MT19937 random number generator with Marsaglia and Tang's Ziggurat algorithm to generate random numbers from a non-uniform distribution. BSD Ivan Raikov 5.2
rb-tree A sorted dictionary data structure based on red-black trees. GPL-3 Ivan Raikov 6.3
record-vector The dumb simple inplace data records without type tag. BSD Anton Idukov 1.0.2
records Procedural record-type interface Public Domain David Carlton, Aubrey Jaffer 1.4
salt Hybrid dynamical systems modeling. GPL-3 Ivan Raikov 0.31
sequences Generic sequence operators BSD felix winkelmann 0.6.1
sequences-utils (More) Generic sequence operators BSD Kon Lovett 0.6.0
sexp-diff S-Expression diff algorithm LGPL Michael Weber and Vincent St-Amour Kon Lovett 0.6.0
slib-arraymap The SLIB applicative routines for the arrays library BSD Aubrey Jaffer Kon Lovett 1.2.0
slib-compat CHICKEN SLIB compatibility library Artistic Kon Lovett 1.1.1
slib-wt-tree Weight-balanced trees GPLv2 Stephen Adams Wolfgang Corcoran-Mathe 0.2.0
slset Lists of symbols as sets BSD Peter Bex 0.1
sparse-vectors Arbitrarily large vectors BSD Richard Kelsey and Jonathan Rees Felix Winkelmann 1.2.0
srfi-1 SRFI-1 list library BSD Olin Shivers The CHICKEN Team 0.5.1
srfi-113 SRFI-113: Sets and Bags BSD John Cowan Jeremy Steward 2.0.0
srfi-116 SRFI-116: Immutable Lists. BSD John Cowan Jeremy Steward 2.0.0
srfi-117 SRFI-117: Mutable Queues BSD John Cowan Jeremy Steward 2.0.0
srfi-123 SRFI-123 - Generic accessor and modifier operations MIT Taylan Ulrich Bayırlı/Kammer Diego A. Mundo 0.3.0
srfi-127 SRFI-127: Lazy Sequences BSD John Cowan Ivan Raikov 1.5.1
srfi-128 SRFI-128: Comparators (reduced) BSD John Cowan Jeremy Steward, Jörg F. Wittenberger 1.0.1
srfi-13 SRFI-13 string library BSD Olin Shivers The CHICKEN Team 0.3.8
srfi-132 SRFI-132: Sort Libraries BSD John Cowan Wolfgang Corcoran-Mathe 1.1.0
srfi-133 SRFI-133: Vector Library (R7RS-compatible) BSD John Cowan, Taylor Campbell, Will Clinger Jeremy Steward 2.0.0
srfi-134 SRFI 134: Immutable deques MIT John Cowan, Kevin Wortman, Shiro Kawai, and Wolfgang Corcoran-Mathe Wolfgang Corcoran-Mathe 1.2.0
srfi-137 SRFI-137: Minimal Unique Types MIT John Cowan & Marc Nieper-Wißkirchen Wolfgang Corcoran-Mathe 0.3
srfi-14 SRFI-14 character-sets library BSD Olin Shivers The CHICKEN Team 0.2.5
srfi-151 SRFI 151: Bitwise Operations MIT Olin Shivers, Aubrey Jaffer, John Cowan Sören Tempel 1.0.3
srfi-152 String library (reduced) MIT John Cowan Daniel Ziltener 1.0
srfi-162 SRFI-162: Comparators sublibrary BSD-2 John Cowan Jules Altfas 0.1.1
srfi-178 SRFI 178: Bitvector library MIT John Cowan and Wolfgang Corcoran-Mathe Wolfgang Corcoran-Mathe 1.1.0
srfi-179 SRFI-179: Nonempty Intervals and Generalized Arrays (Updated) MIT Bradley Lucier Diego A. Mundo 0.3.1
srfi-189 SRFI 189: Maybe and Either MIT John Cowan and Wolfgang Corcoran-Mathe Wolfgang Corcoran-Mathe 1.1.0
srfi-19 Time Data Types and Procedures BSD Will Fitzgerald (for CHICKEN by Kon Lovett) Kon Lovett 5.1.2
srfi-196 SRFI-196: Range Objects MIT John Cowan & Wolfgang Corcoran-Mathe Wolfgang Corcoran-Mathe 1.1.1
srfi-207 SRFI-207: String-notated bytevectors MIT Daphne Preston-Kendal, John Cowan, & Wolfgang Corcoran-Mathe Wolfgang Corcoran-Mathe 2.1.0
srfi-209 SRFI 209: Enums and enum sets MIT John Cowan and Wolfgang Corcoran-Mathe Wolfgang Corcoran-Mathe 1.4.2
srfi-259 Tagged procedures with type safety (with SRFI-229 compatability) MIT Peter McGoron 2.0.0
srfi-27 Sources of Random Bits BSD Sebastian Egner, for CHICKEN by Kon Lovett and Sergey Goldgaber Kon Lovett 4.3.3
srfi-271 Random port libraries BSD 0-clause Peter McGoron 1.0.0
srfi-41 SRFI 41 (Streams) BSD Philip L. Bewig, for CHICKEN by Kon Lovett Kon Lovett 2.3.3
srfi-42 SRFI-42 (Eager comprehensions) SRFI Sebastian Egner Ivan Raikov 1.77
srfi-63 Homogeneous and heterogeneous arrays Artistic Aubrey Jaffer, ported to hygienic Chicken with test suite by Peter Danenberg Kon Lovett 1.0.1
srfi-69 SRFI-69 hash-table library BSD The CHICKEN Team The CHICKEN Team 0.5.3
srfi-69-weak SRFI-69/90 hash-table library (w/ weak references) BSD The CHICKEN Team and Kon Lovett Kon Lovett 2.3.3
srfi-99 SRFI-99 record types BSD Thomas Chust 1.4.6
stack Provides LIFO queue (stack) operations BSD Kon Lovett 4.1.0
string-utils String Utilities BSD Kon Lovett 3.6.1
symbol-utils Symbol Utilities BSD Kon Lovett 3.0.0
tabular Parsing and formatting of tabular text data such as comma- and delimiter-separated values (CSV and DSV). GPL-3 Ivan Raikov 1.5
transducers Transducers for working with foldable data types. MIT Jeremy Steward 0.10.0
trie A trie (prefix tree) implementation BSD Moritz Heidkamp 3
vector-lib Port of the SRFI-43 reference implementation BSD Taylor Campbell The CHICKEN Team 2.2
vlist An implementation of vlists, a functional list-like data structure. LGPL-3 Ludovic Courtès Ivan Raikov 1.2

Data formats and parsing

Name Description License Author Maintainer Version
abnf Parser combinators for Augmented BNF grammars (RFC 4234). GPL-3 Ivan Raikov 9.1
base64 Encoding and decoding of base64 strings BSD James Bailey, Jim Ursetto 1.1
cmark A chicken wrapper for cmark with markdown to sxml capabilities MIT Harley Swick Diego A. Mundo 0.2.1
comparse Schemely parser combinators BSD Moritz Heidkamp 5
csv-abnf Parsing and formatting of comma-separated values (CSV). GPL-3 Ivan Raikov 6.2
ersatz A template engine inspired by Jinja2 and Jingoo. LGPL-3 Ivan Raikov 1.31
filepath Cross-platform file path manipulation. BSD Ivan Raikov 1.8
icu Chicken bindings to the ICU unicode library Unicode Diego A. Mundo 0.3.4
input-parse input-stream tokenizing and parsing routines. Public Domain Oleg Kiselyov. Ported to chicken by Shawn Wagner. 1.2
internet-message Parser combinators for Internet Message Format (RFC 5322). GPL-3 Ivan Raikov 8.0
json A JSON library MIT Tony Garnock-Jones 1.7
json-abnf Parser combinators for JavaScript Object Notation (JSON). GPL-3 Ivan Raikov 8.0
lalr An efficient LALR(1) parser generator LGPL-3 Dominique Boucher Ivan Raikov 2.5.4
lexgen Lexer combinators GPL-3 Ivan Raikov 8.3
lowdown A pure Chicken Markdown parser BSD Moritz Heidkamp 4
msgpack MessagePack implementation for CHICKEN BSD Hugo Arregui Théo Cavignac 2.0.0
packrat A packrat parsing library MIT Tony Garnock-Jones felix winkelmann 1.6
rfc3339 RFC3339 datetime parser BSD Jim Ursetto 0.1.4
silex An efficient and powerful lexer generator BSD Danny Dubé 1.1
srfi-115 SRFI 115: Scheme Regular Expressions MIT Alex Shinn Wolfgang Corcoran-Mathe 0.4.0
srfi-180 A JSON parser and printer that supports JSON bigger than memory. BSD Daniel Ziltener 1.6.3
srfi-233 SRFI 233: INI files MIT Lilianna Smólska, John Cowan, Arvydas Silanskas Lilianna Smólska 1.0.1
utf8 Unicode support shim BSD Felix Winkelmann 3.7.0

Tools

Name Description License Author Maintainer Version
autocompile Automatically compile Scheme scripts on demand public domain felix winkelmann 1.1.1
chicken-update Update installed eggs public domain Diego A. Mundo 0.1.8
commands Helpers for programs that dispatch commands BSD Mario Domenech Goulart 1.0.2
csm a build system BSD felix 0.96
dotenv A simple .env file loader MIT Masood Ahmed v1.0.1
edward An extensible implementation of the ed text editor as defined in POSIX.1-2008 GPLv3 Sören Tempel 1.2.0
egg-tarballs Creates tarballs for eggs in henrietta cache BSD Mario Domenech Goulart 1.1.0
feathers A simple debugger for CHICKEN BSD felix winkelmann The CHICKEN team 0.2
henrietta-cache-git A tool to convert and keep henrietta's cache in a git repository BSD Mario Domenech Goulart 0.0.3
message-digest-utility A message-digest utility BSD Kon Lovett 0.1.2
svnwiki2html A program to convert svnwiki syntax to HTML BSD Mario Domenech Goulart 0.1.3
test-new-egg A tool to test new eggs before they are added to the official CHICKEN repository BSD Mario Domenech Goulart 1.0.5
tick BSD Mario Domenech Goulart 0.0.1
trace tracing and breakpoints public domain felix winkelmann 2.0

Sound

Name Description License Author Maintainer Version
espeak Chicken bindings for espeak-ng's speak_lib.h GPL-3.0 Diego A. Mundo 0.2.0

Unit-testing

Name Description License Author Maintainer Version
micro-benchmark Easily create micro-benchmarks GPLv3 David Krentzlin Kon Lovett 0.3.6
server-test Utilities to help testing servers BSD Mario Domenech Goulart 0.7
srfi-64 SRFI 64: A Scheme API for test suites SRFI Sunjoong Lee Diego A. Mundo 1.0.7
srfi-78 SRFI-78: Lightweight testing MIT Sebastian Egner Wolfgang Corcoran-Mathe 0.6.0
test Yet Another Testing Utility BSD Alex Shinn 1.3
test-utils Test Utilities (for test egg) BSD Kon Lovett 1.8.2

Cryptography

Name Description License Author Maintainer Version
chibi-crypto Chibi Scheme's crypto library BSD Alex Shinn Diego A. Mundo 0.1.3
hmac HMAC provides a HMAC using the message-digest interface. BSD Thomas Hintz Ivan Raikov 7.3.0
md2 Message Digest 2 algorithm as defined in RFC1319 BSD Tobias Heilig Ivan Raikov 1.5
md5 Computes MD5 (RFC1321) checksums Public Domain Colin Plumb, packaged for Chicken by Peter Bex Kon Lovett 4.2.0
message-digest Message Digest (omnibus) BSD Kon Lovett 4.4.0
message-digest-primitive Message Digest Primitive BSD Kon Lovett 4.4.0
message-digest-type Message Digest Type BSD Kon Lovett 4.4.4
message-digest-utils Message Digest Support BSD Kon Lovett 4.4.2
pbkdf2 Password-Based Key Derivation Function as defined in RFC2898 BSD Tobias Heilig Ivan Raikov 1.4
rabbit Rabbit stream cipher. Public Domain Martin Boesgaard, Mette Vesterager, Thomas Christensen and Erik Zenner Lilianna Smólska 3.0
ripemd RIPE Message Digest BSD Kon Lovett 2.2.0
sha1 Computes SHA1 (FIPS-180-1) checksums Public Domain Steve Reid, packaged for Chicken by Peter Bex Kon Lovett 4.2.0
sha2 Computes 256-, 385- and 512-bit SHA2 checksums BSD Aaron D. Gifford and Daishi Kato Kon Lovett 4.3.0
simple-md5 Computes MD5 (RFC1321) checksums Public Domain Colin Plumb, packaged for Chicken by Peter Bex Peter Bex 0.2.1
simple-sha1 A fast and simple SHA1 implementation with minimal dependencies Public Domain Steve Reid and felix winkelmann felix winkelmann 1.3
tiger-hash Tiger/192 Message Digest BSD Kon Lovett 4.2.0
totp HMAC-Based and Time-Based One-Time Password algorithms as defined in RFC4226 and RFC6238 BSD Ivan Raikov Ivan Raikov 1.1
uuid-lib OSF DCE 1.1 UUID BSD Kon Lovett 0.0.18

User interface toolkits

Name Description License Author Maintainer Version
bb An easy-to-use GUI toolkit based on FLTK BSD felix winkelmann 1.33
tkgui A Scheme/TclTk GUI build tool BSD-2 J Altfas v0.8.8.9

Code generation

Name Description License Author Maintainer Version
crunch An embedded compiler for a statically typed subset of R7RS Scheme BSD felix winkelmann 0.9993
crunch-simd SIMD extensions for the CRUNCH compiler BSD felix winkelmann 0.2
fp An interpreter/translator for a dialect of John Backus' FP language BSD felix winkelmann 0.9

Miscellaneous

Name Description License Author Maintainer Version
abbrev Create unique abbreviations for a list of strings LicenseRef-OWL-0.9.4 Peter Lane, Lilianna Smólska Lilianna Smólska 1.0
advice 'advise' functionality BSD felix winkelmann 0.5
apropos CHICKEN apropos BSD Kon Lovett 4.0.2
big-chicken Wrapper module for all core modules BSD felix winkelmann 1.3
bvconv cffi bindings to iconv glibc. On bytevectors BSD Anton Idukov 1.0.2
check-errors Argument checks & errors BSD Kon Lovett 4.0.1
chibi-app Chibi Scheme's app library BSD Alex Shinn Diego A. Mundo 0.1.1
chicken-blob Replacement for CHICKEN 5's 'blob' module BSD Felix L. Winkelmann 0.2
compile-file Programmatic compiler invocation BSD The CHICKEN Team 1.4
condition-utils SRFI 12 Condition Utilities BSD Kon Lovett 2.4.2
define-options Conveniently bind to getopt-long options LGPL Idiomdrottning and Chris Brannon 1.24
dynamic-import Dynamic Import Public Domain Kon Lovett 1.6.0
expand-full Full macro expansion BSD Kon Lovett 2.2.1
genann Chicken bindings to genann - a simple neural network library in ANSI C Zlib Diego A. Mundo 0.2.3
getopt-long Command line option parsing. LGPL-3 Ivan Raikov 4.1
getopt-utils Utilities for getopt-long BSD Kon Lovett 1.3.0
memoize Procedures memoization BSD Arthur Maciel Kon Lovett 1.0.0
memory-mapped-files Memory-mapped file access for UNIX and Windows BSD The CHICKEN Team, Windows support by "rivo" 0.6
nutils An eclectic set of utilities BSD-2 J Altfas 0.4.5.1
optimism Command line option handling Public Domain Evan Hanson 1.0.0
posix-regex A thin wrapper around POSIX regular expression matching GPL-3 Sören Tempel 0.1.3
posix-utils posix-utils BSD Kon Lovett 2.1.7
regex Compatibility library for old regular expression API BSD felix winkelmann The CHICKEN team 2.1
shell Convenient shell-command invocation public domain Felix Winkelmann 0.5
srfi-253 SRFI 253: Data (Type-)Checking MIT Artyom Bologov Jeremy Steward 0.3.1
srfi-29 Localization BSD Scott G. Miller (for CHICKEN Kon Lovett) Kon Lovett 4.0.1
srfi-34 SRFI-34: Exception Handling for Programs SRFI Richard Kelsey, Michael Sperber Ben Clark, Jörg F. Wittenberger 0.8
srfi-35 SRFI-35 Conditions MIT Richard Kelsey and Michael Sperber Sergey Goldgaber 0.1
srfi-37 A simple and flexible command-line option parsing facility SRFI Anthony Carrico 1.5
stalin An aggressively optimizing Scheme->C compiler GPL-2 Jeffrey Mark Siskind, ported to CHICKEN by felix winkelmann 0.11.12
svn-client A wrapper around Subversion's libsvn_client C library. Public Domain Alejandro Forero Cuervo Peter Bex 1.4
this Python's "this" module ported to CHICKEN BSD Mario Domenech Goulart 0.1
typed-records Typed variants of various record-definition macros BSD felix winkelmann megane 0.84

Concurrency and parallelism

Name Description License Author Maintainer Version
deterministic-threads disable timer-driven thread-scheduling globally BSD Felix Winkelmann 0.1
futures Concurrent evaluation of expressions BSD Felix Winkelman Kon Lovett 2.0.2
mailbox Thread-safe queues with timeout BSD felix winkelman and kon lovett 3.3.10
srfi-18 SRFI-18 thread library BSD The CHICKEN Team The CHICKEN Team 0.2.2
synch Synchronization Forms BSD Kon Lovett 3.3.13
thread-utils Thread Utilities BSD Kon Lovett 2.3.0
timed-resource Resource w/ Timeout BSD Kon Lovett 2.4.5

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