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LanguageTool is an Open Source proofreading tool. This website lists LanguageTool's error detection rules and applies them to Wikipedia content for demonstration and testing purposes.
Browse Rules
LanguageTool uses rules to detect errors. Each rule represents a potential error in the text to check. Have a look at all rules of all languages here.
Check any Wikipedia page
Check Rules' Results
We use LanguageTool on Wikipedia data to test which rules work well and which need more work. If there's a real error you're encouraged to fix it in Wikipedia, but note that the check may not be up-to-date and the error may have been fixed already.
Random selection of LanguageTool results when run on Wikipedia:
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魔夜 峰央（まや みねお、本名山田 峰央、1953年3月4日 - ）は、日本の男性漫画家。新潟県新潟市中央区出身。血液型...
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...のズッコケ修学旅行（那須正幹、前川かずお） 10.4. 漫画 島根の弁護士（香川まさひと、あおきてつお） 天然コケッコー（くらもちふさこ） 碧奇魂ブルーシード（高田裕三） 砂時計（芦原妃名子） 蔵人（尾...
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...計している。 香川県は国内でも指折りの県民の貯蓄率を誇る。温暖な気候風土で、堅実な小金持ちが多く、四国お遍路へのお接待の精神もある。 県内を供給区域とする電力会社は四国電力であるが、岡山県に隣接した島嶼...
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