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Browse Rules: 6,150 matches

These are some of the errors that LanguageTool can detect. Visit the LanguageTool homepage to use it online.

Description Example Category
Proper spelling of LanguageTool I work for Language-Tool. Proper Nouns
Proper noun: Markdown I have formatted my text with markdown. Proper Nouns
Proper noun: Markdown I'm using markdown to format my text. Proper Nouns
Proper noun: Markdown I have written a markdown parser. Proper Nouns
proper noun 'Turkey' (country) I'm from turkey. Upper/Lowercase
proper noun 'mar-a-lago' Mar a Lago is a resort and national historic landmark in Palm Beach. Proper Nouns
proper noun 'mar-a-lago' Mar-A-Lago is a resort and national historic landmark in Palm Beach. Proper Nouns
proper noun 'Japan' I lives in japan. Upper/Lowercase
proper capitalization of 'State of the Union' Since Franklin Roosevelt, the State of the union is given typically each January before a joint session of the United States Congress Grammar
Pronoun + noun I downtown went yesterday. Grammar
LanguageTool 6.8-SNAPSHOT (2026-05-04 22:33:08 +0200)