SWI-Prolog

SWI-Prolog - free implementation of the programming language Prolog, commonly used for teaching and semantic web applications. This programming language is the 341^st most popular in the global Wikipedia ranking of programming languages and the 212^th most popular programming language in Italian Wikipedia. Article “SWI-Prolog” in Italian Wikipedia has 3.1 points for quality (as of July 1, 2025). The article contains 0 references and 3 sections.

This article has the best quality in Russian Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “SWI-Prolog”, its content was written by 17 registered users of Italian Wikipedia and edited by 114 registered Wikipedia users in all languages.

SWI-Prolog is on the 212^th place in local ranking of programming languages in Italian Wikipedia and on the 341^st place in global ranking of programming languages in all the time.

The article is cited 3 times in Italian Wikipedia and cited 48 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Italian): #31154 in July 2019
• Global: #183029 in April 2014

The highest popularity rank from 2008:

• Local (Italian): #225866 in May 2009
• Global: #493680 in April 2009

There are 8 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Russian (ru) SWI-Prolog		26.8136
2	English (en) SWI-Prolog		25.1925
3	Ukrainian (uk) SWI-Prolog		23.1451
4	Dutch (nl) SWI-Prolog		14.7224
5	Vietnamese (vi) SWI-Prolog		8.1016
6	Italian (it) SWI-Prolog		3.1253
7	Portuguese (pt) SWI-Prolog		1.5954
8	Spanish (es) SWI-Prolog		1.2376

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "SWI-Prolog" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) SWI-Prolog		259 580
2	Russian (ru) SWI-Prolog		47 353
3	Spanish (es) SWI-Prolog		43 350
4	Portuguese (pt) SWI-Prolog		16 154
5	Italian (it) SWI-Prolog		10 455
6	Dutch (nl) SWI-Prolog		8 384
7	Ukrainian (uk) SWI-Prolog		3 688
8	Vietnamese (vi) SWI-Prolog		3 200

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "SWI-Prolog" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) SWI-Prolog		724
2	Russian (ru) SWI-Prolog		94
3	Italian (it) SWI-Prolog		54
4	Spanish (es) SWI-Prolog		53
5	Portuguese (pt) SWI-Prolog		24
6	Vietnamese (vi) SWI-Prolog		14
7	Dutch (nl) SWI-Prolog		9
8	Ukrainian (uk) SWI-Prolog		8

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "SWI-Prolog" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) SWI-Prolog		59
2	Italian (it) SWI-Prolog		17
3	Russian (ru) SWI-Prolog		13
4	Dutch (nl) SWI-Prolog		12
5	Portuguese (pt) SWI-Prolog		5
6	Vietnamese (vi) SWI-Prolog		4
7	Ukrainian (uk) SWI-Prolog		3
8	Spanish (es) SWI-Prolog		1

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "SWI-Prolog" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Russian (ru) SWI-Prolog		1
2	English (en) SWI-Prolog		0
3	Spanish (es) SWI-Prolog		0
4	Italian (it) SWI-Prolog		0
5	Dutch (nl) SWI-Prolog		0
6	Portuguese (pt) SWI-Prolog		0
7	Ukrainian (uk) SWI-Prolog		0
8	Vietnamese (vi) SWI-Prolog		0

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The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "SWI-Prolog" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) SWI-Prolog		28
2	Dutch (nl) SWI-Prolog		5
3	Spanish (es) SWI-Prolog		4
4	Portuguese (pt) SWI-Prolog		4
5	Italian (it) SWI-Prolog		3
6	Russian (ru) SWI-Prolog		2
7	Ukrainian (uk) SWI-Prolog		1
8	Vietnamese (vi) SWI-Prolog		1

More...

#	Language	Value
en	English SWI-Prolog
es	Spanish SWI-Prolog
it	Italian SWI-Prolog
nl	Dutch SWI-Prolog
pt	Portuguese SWI-Prolog
ru	Russian SWI-Prolog
uk	Ukrainian SWI-Prolog
vi	Vietnamese SWI-Prolog

Best Rank

Italian: #225866 05.2009

Global: #493680 04.2009

Best Rank

Italian: #31154 07.2019

Global: #183029 04.2014

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information