Credits from $4.99
Grammar Checker AI

For learners and writers of German

German grammar checker with fixes explained in English

Paste German text, from a homework paragraph to a business email. It comes back corrected, with each main fix explained in English: the case, the ending or the word order rule behind it.

Check my GermanSee pricing
  • Cases and endings
  • Verb position
  • Comma rules
Language
Depth
0 / 3,000 words

Corrected text

Paste your text and press Check grammar. The corrected text and the main fixes appear here.

At a glance

This German grammar checker corrects spelling, cases, adjective endings, verb position, das and dass, capital letters and commas. Paste 1 to 3,000 words, keep German selected, choose proofread or polish, and get the corrected German text with up to 12 main fixes explained in English. Signing up is free; checks use purchased credits at 1 credit per word, with a 20-credit minimum.

Language
German; du or Sie and Swiss ss kept as you write them
Checks
Cases, endings, verb position, das and dass, capitals, commas
Explanations
In English, up to 12 main fixes per check
Price
1 credit per word, 20-credit minimum; $0.08 to $0.20 per 1,000 words
Text length
1 to 3,000 words per check
Account
Free to sign up; checks use purchased credits

What the German check looks at

  • 01

    Cases after prepositions

    Mit, seit and nach take the dative, für and ohne the accusative: a wrong article or pronoun after them is corrected.

  • 02

    Adjective endings

    Endings after der, ein or no article are matched to gender, case and number, a frequent stumbling block for learners.

  • 03

    Verb position

    The verb comes second in a main clause and last after weil, dass, ob and other subordinating words, separable verbs included.

  • 04

    Commas and capitals

    Commas before subordinate and relative clauses, and capital letters for nouns and for verbs used as nouns, as in beim Essen.

How to check German grammar

  1. 01

    Paste the German text

    Copy it from your document, email or homework; umlauts and ß come through as they are.

  2. 02

    Keep German selected

    The page starts with German. Choose proofread for errors only, or polish to smooth awkward sentences too.

  3. 03

    Learn from the list

    Each main fix shows the original words, the correction and the rule in English.

Common German mistakes, with corrections

These are among the errors the German checklist covers. Each line shows the mistake, the correction and the reason:

  • Ich glaube, das er kommt → Ich glaube, dass er kommt (dass starts a clause; das is an article or pronoun)
  • Ihr seit zu spät → Ihr seid zu spät (seid is a form of sein; seit means since)
  • mit der Bus → mit dem Bus (mit always takes the dative)
  • weil ich habe keine Zeit → weil ich keine Zeit habe (the verb goes last after weil)
  • ein großer Haus → ein großes Haus (Haus is neuter, so the ending after ein is -es)
  • Ich weiß dass du recht hast → Ich weiß, dass du recht hast (a comma comes before the dass clause)
  • beim essen → beim Essen (a verb used as a noun takes a capital letter)

Swiss, Austrian and dialect German

Swiss Standard German writes ss instead of ß, and the checker keeps ss when your text uses it. Austrian vocabulary such as Jänner is standard in Austria; if the checker ever lists such a word as a fix, keep your original.

German written the way a dialect is spoken is not standard German, so the checker may treat dialect forms as mistakes. Choose proofread and review the list before you accept the changes.

Check these yourself before you submit

Four checks that catch most learner errors by hand:

  • Find the verb in every weil, dass or ob clause and make sure it comes last.
  • Read each preposition with the article after it: mit dem, für den, seit der.
  • Capitalize every noun, including nouns made from verbs and adjectives.
  • Put a comma before dass, weil, wenn and relative pronouns.

More checkers

German grammar checker FAQ

Does it explain the corrections in English?

Yes. The corrected text stays in German, and each of up to 12 main fixes quotes the German words, shows the correction and gives a short reason in English, such as "mit takes the dative".

Will it change du to Sie or the other way round?

No. The checker keeps the form of address your text uses. If the text mixes du and Sie, it makes the form consistent with the one used most and lists that as a fix.

Is this German grammar checker free?

Signing up and reading the mistake list on this page are free. Checks use purchased credits: 1 credit per word, at least 20 credits, so a 200-word paragraph costs 200 credits. New accounts start with no credits.

Can I check German homework or exam texts?

You can check any German text you paste. If your school or exam rules limit the help you may use, follow them; the list of fixes is there so you can learn the rule behind each correction.

Check your German before you send it

Packs start at $4.99 for 25,000 credits, about 25,000 words of German. Signing up is free.

Check my German

Last updated October 23, 2026

Create your Grammar Checker AI account