Free German Grammar Checker

Check and correct German grammar, spelling, and punctuation instantly. Our AI understands complex German grammar rules including noun cases, verb conjugation, and word order.

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Free: 5000 words per check. Upgrade for unlimited access.

Why Choose Our Free German Grammar Checker?

Case & Gender Detection

German has four grammatical cases (Nominativ, Akkusativ, Dativ, Genitiv) and three genders. Our AI catches case and gender agreement errors that other tools miss.

Compound Word Analysis

German is famous for compound nouns (Zusammengesetzte Nomen). Our checker validates compound word formation and capitalization rules.

Verb Conjugation & Word Order

Detects incorrect verb conjugation, separable prefix placement, and the V2 word order rule that makes German sentence structure unique.

Free vs Premium

Feature	Free	Premium
Word Limit	5000 words	Unlimited
German Grammar Check	Yes	Yes
Writing Score	Basic	Advanced
Auto-Fix All Errors	Yes	Yes
History	No	Yes
Priority Processing	No	Yes

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Frequently Asked Questions

Yes, our AI grammar checker understands all four German grammatical cases (Nominativ, Akkusativ, Dativ, Genitiv) and checks for correct case usage with prepositions, verbs, and in relative clauses.

Yes, German compound words (like Handschuh or Krankenhaus) are analyzed for correct formation, spelling, and capitalization. The tool also suggests compound word corrections.

Absolutely. The checker understands both formal (Sie) and informal (du) address forms and checks for consistent usage throughout your text, including verb conjugation differences.

Our tool enforces the V2 (verb-second) rule in main clauses, ensures the verb moves to the end in subordinate clauses introduced by conjunctions like weil, dass, and obwohl, and checks for correct inversion after adverbial fronting.

Yes, the checker validates correct usage of umlauts (ä, ö, ü) and the Eszett (ß), including the 2017 spelling reform that introduced the capital ẞ. It also suggests corrections when umlauts are incorrectly replaced by ae, oe, or ue.

While our tool catches gender errors automatically, common patterns can help: nouns ending in -ung, -heit, -keit, and -schaft are typically feminine (die); nouns ending in -chen and -lein are neuter (das); and nouns ending in -ling and -er (for agents) are usually masculine (der).

Yes, our AI understands separable prefix verbs (trennbare Verben) like anfangen, aufhören, and mitkommen. It checks that the prefix moves to the end of the clause in main sentences and stays attached in subordinate clauses and infinitive constructions.

Absolutely. The tool supports academic German conventions including formal register, Konjunktiv I for indirect speech, complex sentence structures with multiple subordinate clauses, and academic vocabulary. It also checks for consistency in citation-related grammar.

WritingBot uses advanced AI that understands context better than rule-based tools. While LanguageTool and Duden Mentor rely primarily on pattern matching, our AI comprehends sentence meaning, catches more nuanced errors in case agreement and word order, and provides more natural correction suggestions.

Most texts are analyzed within 2-5 seconds regardless of length. Our AI processes German grammar, spelling, and style simultaneously, so you get comprehensive results in a single check without needing to run multiple passes.

Yes, WritingBot is fully responsive and works on all mobile devices and tablets. Simply open writingbot.ai in your mobile browser, paste or type your German text, and get instant grammar corrections without installing any app.

Free users can check German grammar with our Mistral AI model with a daily usage limit. Premium users get access to our advanced Claude AI model for more accurate and nuanced corrections, higher daily limits, and priority processing for longer texts.