SWI-Prolog packages

Below is a list of known packages. Please be aware that packages are not moderated. Installing a pack does not execute code in the pack, but simply loading a library from the pack may execute arbitrary code. More information about packages is available here. You can search for packages from the Prolog command line using pack_list/1. This contacts the pack server for packs that match by name or title. A leading i indicates that the pack is already installed, while p merely indicates that it is known by the server.

?- pack_list(graph).
p callgraph@0.3.4           - Predicate call graph visualisation
i graphml@0.1.0             - Write GraphML files
i gvterm@1.1                - Show Prolog terms using graphviz
p musicbrainz@0.6.3         - Musicbrainz client library
p sindice@0.0.3             - Access to Sindice semantic web search engine

After finding the right pack, the pack and its dependencies can be installed using the pack_install/1 as illustrated below.

?- pack_install(hello).

Clicking the package shows details and allows you to rate and comment the pack.

Pack tot: 386	Version (#older)	Downloads tot: 62,402 (#latest)	Rating (#votes/ #comments)	Title
abbreviated_dates	0.0.392235	2,490123		Parses abbreviated and ambiguous dates in multiple languages
achelois	0.5.07	7,577211		Collection of tools to make writing scripts in Prolog easier.
aleph	523	5131		Aleph Inductive Logic Programming system
amazon_api	0.0.32	8477		Interface to Amazon APIs
ansi_termx	0.0.1	33		ANSI terminal operations
anti_unify	0.54	146		Anti-unification. anti_unify/3 is intended as a relational drop-in replacement for term_subsumer/3.
aop	0.0.99	781		Opinonated aspect-oriented programming for prolog
ape	6.7.1807151	541		Parser for Attempto Controlled English (ACE)
app	0.1	12		Prolog Application Server
arithmetic_types	0.0.54	333		Support for user defined types in arithmetic expressions
arouter	2.0.05	23454		Alternative HTTP path router
assertions	0.0.143	771		Ciao Assertions Reader for SWI-Prolog
atom_feed	0.2.04	10288		Parse Atom and RSS feeds
auc	1.011	2032		Library for computing Areas Under the Receiving Operating Charactersitics and Precision Recall curves
automake	0.2.514	6620		Automake
b_real	1.09	635		Interface predicates to commonly used R functions.
bddem	4.3.124	2602		A library for manipulating Binary Decision Diagrams
bencode	0.0.1	58		Bencoding from BitTorrent protocol
bibtex	0.1.83	3222		Parser and predicates for BibTeX files
bims	3.08	967		Bayesian inference of model structure.
bio_analytics	0.65	332		Computational biology data analytics.
bio_db	4.530	1071		Access, use and manage big, biological datasets.
bio_db_repo	24.4.523	661		Data package for bio_db.
biomake	0.1.512	457		Prolog makefile-like system
blog_core	1.6.324	1266		Blog/CMS framework
body_reordering	2.0.36	3418		Clause expansion Utils for deciding which order to run Goals in a body
bousi_pack	1.0.03	331		On my way to a SWISH enabled BPL - a FLI exercise
by_unix	0.22	9229		An elegance layer to calling unix commands.
call_cleaup_each	0.0.1	1		Call A Goal On Each Redo
callgraph	0.4.117	369235	(1/2)	Predicate call graph visualisation
canny_tudor	0.23.225	11322		Canny bag o' Tudor
cclab	0.1.513	3922		Continuations lab
ccprism	0.1.020	6640		Probabilistic programming using delimited continuations
chan	0.2.0	35		Directional channels for thread communication
chat80	1.11	8463		Classic CHAT80 Prolog natural language application
chess_db	1.03	5826		PGN and chess game databases.
ciao	0.0.11	2313		Ciao Prolog compatibility library
clause_attvars	1.1.1187	211		An alternate interface to the clause database to allow attributed variables to be asserted
cli_table	1.0.10	47		Pretty unicode tables for the CLI with Prolog
clitable	1.0.87	5324		Pretty unicode tables for the CLI with Prolog
clpBNR	0.11.527	542344		CLP over Reals using Interval Arithmetic - includes Rational, Integer and Boolean domains as subsets.
clpcd	0.0.13	281		Constraints over continuous domains
condition	0.1.13	6957		Condition system a la Common Lisp
consul_client	0.0.42	1916		Consul Client
cosmos	0.3612	264		<no title>
coworkers	0.1.0	20		Workflow definition as tree of coroutines
cplint	4.5.0215	1,0542		A suite of programs for reasoning with probabilistic logic programs
cplint_datasets	1.0	82		Dataset for machine learning with cplint
cplint_r	1.0.015	10158		R plotting predicates for cplint
css_write	1.4.06	574		DCG for generating CSS
ct_fft	0.0	1		Cooley–Tukey FFT algorithm
date_time	0.1.47	3,7272,932	(1/1)	Logical arithmetic on dates and times
db_facts	0.55	295181		Common db-tables-as-facts and SQL layer for ODBC and proSQLite.
dcg4pt	1.0.04	8359		DCG for Parse Trees
dcg_extras	0.1	5		Dcg extras
dcg_tools	0.0.32	31		Battery included bidirectional dcg parsing
dcg_util	0.3.13	14728	(1/1)	DCG utility predicates
dcgutils	1.1.311	558459		DCG related utilities
ddebug	0.11	1412		Declarative Debugger
debug_adapter	0.7.228	12947		Debug Adapter Protocol package for SWI-Prolog
debug_call	1.57	7513		Debugging with calls
delay	0.3.37	8456		Avoid instantiation errors for built-in predicates
dia	0.1	45		An interface to .dia-uml-diagrams
diagnostics	0.2.03	8367		SWI-Prolog source code diagnostics library
dialect-ciao	0.0.1	1		Ciao Prolog compatibility library
dict_schema	0.0.21	128125		Dict converter and validator
dictoo	3.1.329	19034		Dict-like OO Syntax
dictype	0.0.2	22		Concise dict type definitions
dirtree	1.0.13	3921		Load XML of directory content.
disp_bn	0.1	15		Construct and display BN terms via graphviz
djson	0.0.32	151145		Declarative JSON
docstore	2.0.26	20243		Document-oriented database for Prolog
dot_dcg	0.1.04	271		A DCG for a subset of the DOT language
dotcloud	0.0.21	3226		Conveniences for running on dotCloud
dpath	0.7.36	517		Directory traversal module
dynworks	1.3.26	10626		Dynamic multi-dimensional arrays and vectors
each_call_cleanup	1.1.11810	271		Each Call Redo Setup and Cleanup
edcg	0.9.1.813	2751	(1/1)	Extended DCG
eggdrop	2.0.321	421		Hook up to an existing IRC Client called an Eggdrop
environ	2.01	21234		Demo package with C code, fetching the program environment
evil	0.2.31	71	(4/4)	Predicates to Further the Cause of Evil
excel_worksheets	0.3.05	61		Excel reader of worksheets cell values into prolog terms
execution_context	0.2.04	4817		Allows to retrieve setting from execution environment, given flexibility over setting/2, get_env, or command line configuration
fcgi	0.9.0	37		fcgi - Fast Common Gateway Interface (FastCGI) library for Prolog
ffi	0.57	16074		Dynamically call C functions
ffimatrix	0.1.010	851		Operations with matrices using Prolog and C
file_scope	1.1.1185	191		File local scoped efects
file_utilities	0.1	36		File system related utilities
files_extras	0.1.02	382		Few extra predicates for traversing folders and simplifying work with file system
fileutils	0.3.510	9840		Utilities for reading, writing and finding files
fine_upload	0.2.05	299		HTTP support for file uploading
fld	1.2.26	553		Object system that allows easy and efficient access to term arguments by name.
fluents	0.1.21	2817		Access all solutions of a goal without backtracking
flux	1.1.118	41		FLUX: A logic programming method for reasoning agents and ALPprologis a Prolog implementation of an action programming language. With ALPprolog you can program strategies for autonomous agents in dynamic domains like e.g. the Wumpus world.
fnotation	1.0.05	8915		Function notation for Prolog
format_spec	0.0.21	4645		Parse and check format/2 specifications
func	0.4.28	383251	(2/2)	Function application and composition
function_expansion	0.1.24	1175	(1/1)	Help for writing function-like macros
gbn	0.21	1615		BNs for large cohort genomic studies.
genutils	0.3.823	12069		General miscellaneous utilities
geoip	0.9.01	333		Access GeoIP library
googleclient	0.5.23	3311		SWI-Prolog code for "Login with Google"
gpc	1.2.03	8634		Generic polygon clipper
graphml	0.1.0	146	(1/1)	Write GraphML files
graphpl	0.1.16	482		Graph data structure utilities
graphql	0.0.1	41		GraphQL Prolog Library
graphql-swipl	0.0.1	1		GraphQL Prolog Library
gvar_syntax	2.0.318	12468		Global Variable Syntax
gvterm	1.11	223192	(1/1)	Show Prolog terms using graphviz
hashtbl	0.0.21	5352		Pure and impure hash tables
hdt	0.5.38	733		Access RDF HDT files
hello	0.0.1	75	(1/1)	Hello World
hello_world	0.1	18		Hello World pack as a test
hilog	1.1.1181	1816		XSB-Prolog's Hilog Syntax in SWI-Prolog
hook_hybrid	1.1.11812	153		Hook assert retract call of specific predicates
http2_client	1.0.06	5748		An HTTP/2 client
httplog	0.5.01	253		Analyse SWI-Prolog HTTP server log files
ical	0.1.0	9		iCalendar DCGs and parsers
identity	0.2.2	21		Registration, login, and role management
imodule	0.0.1	1		Support for modules from the server.
index_util	0.0.21	256249		Prolog index utils
indexed_terms	1.0.0	19		Positional access to terms' arguments
inotify	0.9.11	7372		Access Linux inotify API to watch file system changes
instant_prolog_docs	2.0.3114	381		Magically document prolog source files based on predicate and variable naming conventions
interpolate	0.1.02	1001		String interpolation
interval	0.14	92		Interval arithmetic for SWI-Prolog
irc_client	1.3.09	6340		Low level interface to IRC clients
jolog	0.0.31	4939		Concurrency via join calculus
json_answer	0.33	136		Convenience module to convert a prolog query into a JSON answer
julian	0.1.37	72114		Date and time library
julian_lang_en	0.0.21	5049		Parse English language phrases into library(julian) constraints
jwt_io	0.0.34	5835		JWT implementation
k8s_client	1.1.04	229		kubernetes API client with watcher functionality
kubepl	0.11	1714		Kubernetes Client
lambda	1.0.0	803	(4/4)	Lambda expressions
lambda_abstractions	0.2.11	5554		Lambda abstractions
languages_bot	0.0.11	1511		A chatbot that talks with the user to recommend some programming language
lazy_streams	0.5.0	18		Lazy Stream Generators
lbfgs	2.017	808		An interface to call libLBFGS from within SWI-Prolog
lcs	0.0.1	45		Longest common subsequence
ldap4pl	0.11	4039		LDAP interface
lib	2.1018	449		Predicate based code development
lib_atts	1.1.1183	201		Common atts.pl interface like https://sicstus.sics.se/sicstus/docs/4.0.0/html/sicstus/lib_002datts.html
libssh	0.9.23	9141		Provide an embedded SSH server
liftcover	0.120	492		A Probabilistic Indutive Logic Programming system
link_grammar_prolog	4.1.0.32	5248		A binding to use the Link Grammar library from SWI-Prolog
list_util	0.13.019	3,6521		Predicates for working with lists
log4p	0.0.94	20753		Logging for Prolog
logicmoo_base	2.0.348	903		LogicMOO - Extends Prolog Programming to support Dynamic Epistemic Logic (DEL) with Constraints
logicmoo_cg	2.0.36	226		Conceptual Graph (CG) Libraries in Prolog and test data
logicmoo_ec	2.0.35	81		Logicmoo Event Calc -- A SWI-Prolog Pack that lets Prolog code seamlessly use planners speaking: LPS, Decreasoner EventCalc, PDDLish and OCLh
logicmoo_nars	2.0.31	123		Narsese: Like OpenNARS in Prolog
logicmoo_nlu	2.0.326	891		Various English to Logic Converters - warning: HUGE amount of lexical and test data
logicmoo_planners	1.1.1182	84		Various Hybrid HTN Planners speaking PDDLish and OCLh
logicmoo_utils	3.1.557	14621		Common predicates that are used throughout LogicMOO Software
logicmoo_webui	2.0.39	251		LogicMOO - The pack that installs the WebUI
logicmoo_workspace	2.0.32	31		LogicMOO Workspace -- The pack that installs the Logicmoo IDE and WebUI
logtalk	3.77.0105	9267		Logtalk - Object-Oriented Logic Programming Language
loop_check	1.1.11810	132		New simple loop checking
lps_corner	2.0.33	188		LPS Corner with SWISH and Dialect
lsp_server	2.2.1129	1,699131		A Prolog LSP Server
mail_merge	1.0.01	191		Library for performing mail merge
mail_standards	0.1.0	3		Mail IMF and Maildir implementations.
markdown	0.0.32	286149		Markdown parser for SWI-Prolog
mathml	1.331	441		Translates mathematical expressions to compounds that can be used by html//1 (SWISH) or html//3 (normal SWIPL, with pack http/html_write).
matrix	2.08	32559		Operations with matrices
matrix_utls	1.11	2421		Matrix utilities: Kronecker (Tensor), Hadamard, and matrices creation/multiplications
mavis	0.2.313	1,1032		Optional type declarations
maybe	0.1.13	7370		The maybe type represents an optional value
medikit	0.0.76	71		meditans' personal utilities
memo	0.6.117	9544		Persistent memoisation of deterministic predicates
midiutils	0.0.31	98		midiutils
mime	0.5.01	231		MIME processing library based on maildrop
miser	0.0.1	28		Build self-optimizing predicates
mlu	0.53	744		Machine learning utilities
modeling	1.0.11	64		Constraint-based mathematical modeling library for Prolog.
morfeusz	0.1.47	162		Morfeusz2 bindings for SWI-Prolog.
mpi	1.05	341		Porting of the LAMMPI library of Yap Prolog to SWI-Prolog
mqtt	1.0.52	9088		mqtt - pub/sub pack for SWI-Prolog using mosquitto
msgpack	0.1.64	3226		DCG for packing & unpacking of MessagePack data to/from bytes
msgpackc	0.2.14	6454		C-Based MessagePack for SWI-Prolog
mtx	0.65	5819		Working with data matrices
multimodal_dcg	2.0.38	3711		Reduce floundering of DCGs by constraining and narrowing search
musicbrainz	0.7.021	5327		Musicbrainz client library
musicxml	0.0.21	3028		MusicXML partial reader
must_trace	1.1.11826	461		Trace with your eyeballs instead of your fingers
mutable_variables	1.0.0	26		Mutable Variables
nan_common	1.22	3329		Common operations (validation, etc.)
nan_numerics_prime	1.2.54	7570		Nan.Numerics.Prime - A simple prime number library
nan_system_sources	1.2.0	15		Nan.System.Sources - Answer Sources in Prolog
nanp	0.1.01	1514		phone numbers in the North American Numbering Plan
narsese	2.0.31	42		Narsese: Like OpenNARS in Prolog
ninja	0.2	4		Ninja build system generator
no_repeats	1.1.1187	2213		New ways to avoid duplicate solutions
notes800	0.1.01	111		Query phone number data from 800notes.com
number_to_word	0.4.25	3732		Integer to English word conversions
obo_core	0.0.1	16		Vocab for upper parts of core OBOs such as GO
obo_metadata	0.0.43	224221		RDF vocabulary for OBO metadata ontologies
obo_ro	0.0.1	15		Vocab for OBO Relation Ontology
odf_sheet	0.2.45	9628		Load and analyze ODF spreadsheets (.ods)
odict	0.2.65	2722		Unifier over feature structures based on attributed variables
onepointfour_basics	0.9	1		Some basic predicates that may be useful. Includes a replacement of must_be/2 and a dict prettyprinter
ontodot	0.1.12	1512		Create dot files from an RDF ontology.
ontoweb	0.0.41	98		Show an ontology through a Web service.
open_dicts	0.0.1	32		Open dicts for SWI Prolog
openapi	0.2.16	1251		OpenAPI (Swagger) interface
options	1.510	11615		Options handling.
orgref_fix	0.1.21	81		Fix Org-ref citations.
os_lib	1.510	10233		Operating system interaction predicates.
pPEG	2.0.08	6544		Pack to support parsing text using pPEG grammars
pac	1.8.8122	2272		Anonymous predicates expansion utility
pac4pl	0.11	121		An SWI-Prolog interface to libPAC
pack_errors	2.26	11116		Contextual error handling for packs.
pager	0.1.01	131		Send output to user's preferred pager
pascal	1.05	291		Probabilistc inductive constraint logic
pcache	0.1.0	18		Persistent answer cache
pddl_valoptic_api	1.1.118	1		pddl_valoptic_api -- A SWI-Prolog Pack that lets Prolog code seamlessly use PDDL based planners.
peg_syntax	1.02	123		PEG syntax for prolog
pepl	2.36	342		Parameter estimation for SLP with the Failure Adjusted Maximisation algorithm.
perfunctory_types	0.1	3		Per-functor, static, polymorphic types
persist	0.34	84		Persists facts into a file
pfc	3.0.359	1701		Pfc -- a package for forward chaining in Prolog
pfd_meta	0.1	18		Probabilistic finite domains meta-interpreter
pha	0.1.22	2927		Probabilistic Horn Abduction
phil	1.0.051	1601		Learning Hierarchical Probabilistic Logic Programs
phil_datasets	1.07	444		Dataset for machine learning with phil
pinyin	0.1.55	2418		Parsing and generation of Hanyu Pinyin
plOpenGL	0.6.25	145131	(1/1)	OpenGL Bindings
pl_mustache	1.0.02	191		Mustache
pl_omdb	0.5.08	3919		API interface to OMDB (Open Movie Database)
pl_owl	0.1.0	9		OWL utility predicates over rdf library
plammar	1.0.24	192		Prolog parser and serialiser written in Prolog
planner_api	1.1.1184	91		planner_api -- A SWI-Prolog Pack that lets Prolog code seamlessly use planners speaking PDDLish and OCLh
plasticsearch	0.12	2826		Elasticsearch client API
plblas	0.114	211		lapack/armadillo binding for SWI-Prolog
plcairo	1.1.14	12270		plcairo - Prolog bindings for cairo graphics library
plcal	0.0.55	471		Programming Calendar
plchatscript	1.0.94	3630	(1/1)	Interface to the ChatScript server.
plcomplex	0.33	285		Simple calculation of complex numbers
plfann	0.0.24	663		SWI-Prolog for "Fast Artificial Neural Network Library"
plgi	1.1.011	252112	(1/1)	PLGI - Prolog bindings for GLib/GObject/GIO/GTK+
pljulia	0.1.417	701		Embedded Julia for SWI Prolog
plmake	0.0.31	1712		Prolog makefile-like system
plmidi	0.7.07	4320		Interface to Mac OS X MIDI system
plml	2.0.316	4218		Prolog-Matlab bridge
plosc	0.4.66	5221		OSC input/output via liblo
plplot	0.0.13	6310		A library to plot data using gnuplot.
plrand	0.9.1313	6948		Skippable pseudorandom generator and distributions
plsmf	0.5.08	4026		Standard MIDI File reading
plstat	1.01	2423		plstat - Statistics with Prolog
plumdrum	0.0.63	2414		Parsing of Humdrum/Kern symbolic music file format
pluuid	2.0.0	19		Generating and parsing version 4 UUIDs in Pure Prolog
ppm	0.0.0	2		A simple package manager for SWI-Prolog.
predicate_streams	3.0.323	18860		Implement your own Abstract Predicate Streams
print_table	0.0.52	491		Formats and prints a table on the terminal screen
prism	0.2.14	3026		Run PRISM as a child process
pro2sql	0.1.01	21		Lightweight translater of Prolog to SQL SELECT statements
probat	0.12	31		probat - Property based testing Prolog programs.
programk	2.0.31	96		AIML 2.0 - Because an AIML Interpreter/Chatbot needed to exist in Prolog to!
progress_bar	0.0.51	211		Progress-bar and spinner (text-based)
prolog2gpt	0.1.0	12		Library of prolog predicates to access the GPT API
prolog_geo	1.0.76	3315		Geospatial support in Prolog
prolog_graphviz	1.0.53	195158		Prolog-based graph visualization
prolog_imagemagick	1.0.33	2820		Prolog binding for ImageMagick
prolog_library_collection	1.0.1612	643279		Prolog Library Collection
prolog_lsp	0.0.1010	184149		Implementation of Language Server Protocol for Prolog
prolog_rdf	1.0.75	2915		Prolog RDF Library
prolog_si	0.1	2		Port of the Scryer prolog si module
prolog_starter_project	1.0.42	2014		Prolog Starter Project
prolog_uriparser	1.0.55	2011		Prolog binding for uriparser
prolog_verify_type	0.1	3		A more declarative approach to verify the type of a prolog term
prologmud	2.0.330	702		Online text adventure game - MUD Server
prologmud_I7	1.2.11112	333		PrologMUD I7 (NomicMU!) with small Adventure Games in Prolog using the CHAT80 Prolog natural language application
prologmud_samples	2.0.338	802		Online text adventure game - Sample
prosqlite	1.818	1,019254	(0/1)	An SWI-Prolog interface to SQLite
pub_graph	1.22	243		Access, cache and visualise citation relations in publications servers
pubmed	0.0.43	4433		Access pubmed publication records
purity	0.2.15	151		A Horn Clause Only library for Prolog
py_to_plantuml	0.0.32	107		Creates UML class diagrams from Python pylint's pyreverse generated .dot files.
quantity	0.113	421		Parse quantities like "1.5 kg" and return some formatting information.
quickcheck	0.3.017	1642		QuickCheck randomized testing
r_session	1.11	1615		Interface to an R process
race	0.1.07	571		Client for the SOAP interface of the Attempto Reasoner RACE
rdet	1.0.27	17728		Runtime determinacy checker
rdf_matcher	0.1.53	2720		RDF matching utils
rdf_notification	0.1	15		RDF notification
rdfs2pl	0.0.53	5634		Compile an RDFS schema to prolog predicates
readability_parser	0.0.43	3122		Readability Parser API
real	2.314	59433		Integrative statistics with R
recaptcha	0.9.22	7368		reCAPTCHA plugin for SWI-Prolog HTTP framework
refactor	0.0.363	991	(1/1)	Refactoring Tools for SWI-Prolog
regex	0.3.311	1,7581,363		Regular expressions
reif	1.0.0	601		Reified if, reification library
reif_utils	1.0.0	20		A collection of reified predicates for use with reif.pl
resbound	0.8.11	4140		Run goal with resource bounds
resp	0.33	1916		Redis protocol parser and writer
resp_parse	0.1	1		Redis protocol parser and writer
rocksdb	0.12.011	1191		SWI-Prolog interface to RocksDB
rologp	0.12	2071		Simple interface to R
rologpp	0.4139	2081		Simple interface to R
roman	0.1.0	52		Roman numerals
ropes	0.1.75	1811		Ropes data structure library
rserve_client	1.1.217	901		R Rserve client
rtchecks	0.0.131	501		Run-Time Checker for Assertions
rtg	0.0.711	3322		Regular Tree Grammer validator
rtp_qsndqs	0.32	4038		Real-time persistent queues and deques.
rtrace	0.0.7	1		Selective Interactive Non-Deterministic Tracing
s_expression	1.2.1119	3525		Utilities for Handling of S-Expression Lisp/Scheme-Like forms and parsing of KIF, GDL, PDDL, CLIF
scasp	1.1.429	1047		Goal directed ASP solver
semantria	0.0.43	4030		Use Semantria natural language API
si	0.1	1		Port of the Scryer prolog si module
simple_bootstrap	0.0.21	1614		Bootstrap Extension to Simple Web
simple_template	1.3.19	455250		Logic-free text (HTML) templates
simple_web	0.3.16	4426		Microframework for building websites
sindice	0.0.53	2821		Access to Sindice semantic web search engine
slack_prolog	2.0.33	267		Prolog interface to Slack http://www.slack.com
sldnfdraw	1.619	526260		SLDNF Draw is a Prolog program that draws SLDNF Trees in LaTeX
small_adventure_games	1.1.8	1		Small Adventure Games in Prolog using the CHAT80 Prolog natural language application
smtlib	0.0.65	2821		SMT-LIB parser for SWI-Prolog
smtp	1.1.06	36615		An (E)SMTP client for sending mail
sort_dict	0.0.32	120116		Sorts dicts by key
sourcehut	0.1.10	8		SourceHut GraphQL API client
space	0.3.46	425		Space package
sparkle	0.1.19	866	(1/1)	Prolog-friendly interface to SPARQL endpoints
sparqlprog	0.2.921	2,014318		Logic programming with SPARQL
sparqlprog_wikidata	0.0.32	5446		SPARQLprog bindings for WikiData
spawn	0.0.1	189		Easy concurrency
spotify	0.1.0	15		Use the Spotify API from Prolog.
spuds	1.211	372		Persistent, user code inclusive, documentation server for linux
sql_compiler	0.1.41	2928		Prolog to SQL compiler
stoics_lib	1.814	1031		A medley of library predicates for stoics packs
stompl	0.11	189		STOMP client
subclause_expansion	1.1.1185	111		More detailed versions of term/goal expansion hooks
subsumes	0.43	143		Relational term subsumption. subsumes/2 is intended as a relational drop-in replacement for subsumes_term/2. Note that this conflicts with the deprecated predicate terms:subsumes/2.
sudoku_utils	0.0.113	741735		Testing to make an example package with utils for working with Sudoku
svg	0.1	15		Manipulating SVG xmls
sweet	0.1.13	7873		Sugar to make Prolog a little sweeter
swicli	2.0.012	888		SWI-Prolog interface to C/C++/.NET/Mono/Objective-C
swipe	0.2.611	6032		Shell pipeline construction with type checking
switex	0.0.76	3731		Literate programming with LaTeX and Prolog
tabling_dra	1.0.45	72		SWI-Prolog interface to Table-handling procedures for the "dra" interpreter. Written by Feliks Kluzniak at UTD (March 2009)
tailwind_pl	2.0.29	268		Tailwind-style CSS generator for Prolog
tailwind_pl_generate	2.2.03	104		Tailwind-style CSS generator for Prolog - Generator
tap	1.0.326	2,30011		Automated tests via Test Anything Protocol
telegrambot	0.0.2	1		API for Telegram
term_diff	0.0.11	1614
terminus_store_prolog	0.19.879	3,535239		Use the Terminus-Store Rust library from Prolog
thousands	0.2.03	3530	(0/1)	Thousands separator for large integers
tidylog	0.0.1	19
timeutils	0.0.4	30		Tools for temporally aware programming
tokenize	1.0.14	286226		A simple tokenization library
tor	1.0.44	4423		Tor: Extensible Search with Hookable Disjunction
transpiler	0.122	1143		A universal translator for programming languages
trill	6.0.6123	32620		A tableau probabilistic reasoner in three different versions
turing	1.0.22	4338		Turing Machine Simulator
tus	0.0.1413	25110		TUS file transport protocol in prolog
twitter	0.101	246	(1/1)	A pack to access the twitter api
type_check	1.0.33	10430		Type System for Prolog based on Hindley-Milner
typedef	0.1.910	459347	(2/2)	Support for type definitions
unified_diff	0.0.1	28		Parse and generate unified diffs
union_find	1.0.0	36		A union-find algorithm implementation for SWI-Prolog
unionfind	1.0.0	22		Optimal implementation of the union-find algorithm in CHR
upsh	2.65	352		Unix to Prolog shell.
uri_qq	0.3.03	3928		URI quasiquotations
uuid	1.1.02	7674		Generating and parsing version 4 UUIDs
vcard	0.0.1	12		vCard Parser and Predicates
wam_common_lisp	2.0.340	10627		ANSI Common Lisp implemented in Prolog
web	0.1.11	4542		Easy web client
webconsole	0.9.11	102101	(1/2)	Use a browser as HTML console
weblog	0.0.56	5312	(0/1)	weblog
wgraph	0.65	7839		Weighted graphs, with plotting via Real
with	0.0.61	272		Context managers for SWI Prolog
with_memory_file	0.11	51		Like with_output_to but for memory files
with_open_options	1.2.116	2215		Utilities to open various objects for read/write
with_state	0.0.56	3224		Stateful computations with records
with_thread_local	1.2.1115	156		Call a Goal with local assertions
wordnet	0.9.34	17733		Access to WordNet database
wsdl	0.1	100		Web Service Description Language (WSDL) and SOAP
wuenic	0.1	1		wuenic package
wumpus	1.0.0	1		Hunt The Wumpus
xlibrary	0.0.244	631		Extended Libraries for Prolog
xlisting	1.2.11115	292		Selective Interactive Non-Deterministic Tracing
xlisting_web	1.1.1186	1913		Manipulate and browse prolog runtime over www
xsd	0.2.18	853		XML Schema validation with Prolog
xtools	0.0.260	852		Extended Tools for SWI-Prolog
yaml	0.14	2182		YAML parser