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Packs (add-ons) for SWI-Prolog

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: 38
Version
(#older)
Downloads
tot: 8,487
(#latest)
Rating
(#votes/
#comments)
Title
list_util0.13.0192,7471
Predicates for working with lists
regex0.3.3111,5381,143
Regular expressions
mavis0.2.3131,0482
Optional type declarations
julian0.1.3766514
Date and time library
tap1.0.3243761
Automated tests via Test Anything Protocol
func0.4.28323191
(2/2)
Function application and composition
spawn0.0.1153
Easy concurrency
quickcheck0.3.0171521
QuickCheck randomized testing
djson0.0.32136130
Declarative JSON
dcg_util0.3.1312924
(1/1)
DCG utility predicates
function_expansion0.1.241065
(1/1)
Help for writing function-like macros
atom_feed0.2.049379
Parse Atom and RSS feeds
interpolate0.1.02871
String interpolation
delay0.3.378456
Avoid instantiation errors for built-in predicates
amazon_api0.0.327265
Interface to Amazon APIs
maybe0.1.136966
The maybe type represents an optional value
sweet0.1.136863
Sugar to make Prolog a little sweeter
condition0.1.135846
Condition system a la Common Lisp
roman0.1.049
Roman numerals
julian_lang_en0.0.214847
Parse English language phrases into library(julian) constraints
bencode0.0.148
Bencoding from BitTorrent protocol
jolog0.0.314232
Concurrency via join calculus
format_spec0.0.214039
Parse and check format/2 specifications
lcs0.0.138
Longest common subsequence
semantria0.0.433727
Use Semantria natural language API
uri_qq0.3.033625
URI quasiquotations
web0.1.113431
Easy web client
thousands0.2.033126
(0/1)
Thousands separator for large integers
readability_parser0.0.432819
Readability Parser API
dotcloud0.0.212822
Conveniences for running on dotCloud
unified_diff0.0.124
Parse and generate unified diffs
miser0.0.124
Build self-optimizing predicates
chan0.2.023
Directional channels for thread communication
tidylog0.0.114
term_diff0.0.111311
pager0.1.01101
Send output to user's preferred pager
notes8000.1.0181
Query phone number data from 800notes.com
nanp0.1.0187
phone numbers in the North American Numbering Plan