Wikipedia:WikiProject Check Wikipedia

Checkwiki helps clean up syntax and other errors in the source code of Wikipedia by:

• Eliminating errors in the wiki syntax, such as missing close tags or brackets;
• Checking for accessibility issues, such as small print or heading problems;
• Correcting, deleting or moving code that does not follow conventions, such as the position of references with respect to punctuation;
• Finding articles that have invalid ISBNs (list available here)

• The program scans every new dump for over 30 languages and creates a list of articles with errors.
• For a few Wikipedias, the program scans newly revised articles daily, to create a new list for users, omitting already-corrected articles.
• A specific interface – here for the English project – facilitates correcting problems detected by the program in the following three levels of ranking priorities errors. It helps keep the error lists updated in near real time by providing some statistics on corrections made recently.
• You can download the Checkwiki programs at GitHub. The programs are licensed under GPLv3.
• Interested users might also like to review the regularly-updated lists of wiki syntax issues at Special:LintErrors.
• Ananalysis is also performed by WikiCleanerBot twice a month on the dumps for some of the errors, including some additional errors compared to the project interface.

The following tools may be useful when checking Wikipedia:

• WPCleaner (WPC) (multiple languages)
• AutoWikiBrowser (AWB) (multiple languages)
  • JavaScript Wiki Browser (JWB) (English)

The following scripts may also be helpful when checking Wikipedia:

• AutoEd cleans up WikiSyntax and HTML elements. (English)
• autoFormatter (English and German)
• ArticleInfo gadget (multiple languages)
• lintHint (English and German)

The following user CSS may be of further help in identifying material to clean up while editing normally:

• lint.css (language-independent; English instructions)

See also: Wikipedia:Linter § Reports

Bots based upon AWB or Pywikibot can correct many of the problems.

Here are the bots actively working on English Wikipedia. They can be ported to other languages.

Bots fix some of the errors here automatically. Any error tagged with "BOT" is usually fixed by bot at some point, so manually fixing them is unnecessary.

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• Stefan Kühn (talk · contribs) – project founder
• Bgwhite (talk · contribs) – programmer
• Edgars2007 (talk · contribs) – lvwiki coordinator
• Josve05a‎ (talk · contribs) – svwiki coordinator
• Magioladitis (talk · contribs) – enwiki & elwiki coordinator
• Matěj Suchánek (talk · contribs) – cswiki & skwiki coordinator
• Meno25 (talk · contribs) – arwiki coordinator
• NicoV (talk · contribs) – frwiki coordinator and WPCleaner developer
• Diptanshu Das (talk · contribs)
• Funandtrvl (talk · contribs)
• Leujohn (talk · contribs)
• LukasMatt (talk · contribs)
• Titodutta (talk · contribs)
• crystalllized (talk · contribs)
• David Condrey (talk · contribs)
• George.Edward.C (talk · contribs)
• Jerodlycett (talk · contribs)
• Quinto Simmaco (talk · contribs)
• AfroThundr3007730 (talk · contribs)
• Daniel kenneth (talk · contribs)
• GSS-1987 (talk · contribs) – enwiki
• NINTENPUG (talk · contribs)
• Rich Farmbrough (talk · contribs)
• Iadmc (talk · contribs) – using WPCleaner
• SwiftyPeep (talk · contribs)
• CAPTAIN RAJU (talk · contribs)
• AmericanAir88 (talk · contribs)
• justaZBguy (talk · contribs)
• Fsyling (talk · contribs)
• HeartGlow30797 (talk · contribs)
• Pkbwcgs (talk · contribs)
• Adithyak1997 (talk · contribs)
• I dream of horses (talk · contribs)
• creffett (talk · contribs)
• Presidentman (talk · contribs)
• TheHardestAspectOfCreatingAnAccountIsAlwaysTheUsername (talk · contribs)
• WildStar (talk · contribs)
• Flori4nK (talk · contribs)
• Outlander07 (talk · contribs)
• ColinFine (talk · contribs)
• Usernamekiran (AWB) (talk · contribs) alt account of Usernamekiran (talk · contribs) – enwiki, AWB.
• SMcCandlish ☏ ¢ 😼  – AWB & JWB user; enwiki TemplateEditor; author of lint.css
• Rich Farmbrough
• Jstalins (talk · contribs)
• BlackWidowMovie0 (talk · contribs)
• ಮಲ್ನಾಡಾಚ್ ಕೊಂಕ್ಣೊ (talk · contribs)
• Aseleste (talk · contribs)
• R4356th (talk · contribs)
• History DMZ (talk · contribs)
• JJPMaster (talk · contribs)
• Est. 2021 (talk · contribs)
• UnaToFiAN-1 (talk · contribs)
• Valmin (talk · contribs)
• Qwerfjkl (talk · contribs)
• RG067 (talk · contribs)
• 3PPYB6 (talk · contribs)
• Yoshi24517 (talk · contribs)
• Jxfl (talk · contribs)
• Greyzxq (talk · contribs)
• NeosZanadu (talk · contribs)
• Fehufanga (talk · contribs)
• J04n (talk · contribs)
• Eejit43 (talk · contribs)
• 多多123 (talk · contribs)
• 2NumForIce (talk · contribs)
• Liu1126 (talk · contribs)
• Vanderwaalforces (talk · contribs)
• Daniel9247 (talk · contribs)

Place the code {{User WP Check Wikipedia}} on your user page to display the WikiProject userbox:

This user is a participantinWikiProject Check Wikipedia.

• Mark your changes as minor;
• Explain the corrections made in the edit summary: Checkwiki error fix #10. Fix broken bracket;
• When an error is fixed, click "done" in the web interface.

Note: tools like WPCleaner automatically follow the above recommendations.

• Help:HTML in wikitext
• mw:Parsing/Replacing Tidy/FAQ § What will editors need to do? – simplified instructions for fixing pages for the modern MediaWiki parser
• Wikipedia:HTML 5 – information page on technical details of updating WP code to HTML 5 + CSS3, including how to replace deprecated HTML 4.01 markup; includes automated searches for obsolete markup
• Wikipedia:Linter – MediaWiki extension to identify broken and problematic markup which cannot be fixed automatically by the server
• Wikipedia:Manual of Style/Accessibility
  • Wikipedia:WikiProject Accessibility
• List of errors