Check German spelling, grammar and punctuation free. Every issue underlined where it happens, with the reason attached.
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Paste German and every issue is underlined where it happens, labelled spelling, grammar, punctuation or style, with the reason attached. German is written in the Latin alphabet, and cases, das vs dass, commas, capital nouns are what a checker has to get right in it. This one shows the rule each time, not just the change, so you can accept the fix, ignore it, or learn from it.
Three steps. The third is the one most checkers leave out.
Type, paste or drop in a document. German is already selected as the language on this page; the menu above the editor also offers the variants described below. If the text turns out to be something else, the detector says so and you can change it.
Every flag is underlined in the text and listed beside it. Spelling and grammar flags are errors; punctuation and style flags are judgements, and the label tells you which is which before you decide.
Click a flag to see the fix and the rule behind it, then accept it or ignore it. German has rules that speech does not reveal, and the reason is there so the same error is not made twice.
The parts of German grammar and spelling where a checker has to know the language, not just the words.
Five errors German readers notice at once, and what the checker does with each.
Das is an article or a relative pronoun (das Buch, das ich lese); dass introduces a clause after verbs of saying, thinking and feeling (Ich weiß, dass …). If dieses or welches could replace it, it is das.
Seit is a preposition or conjunction of time (seit gestern); seid is the verb form for ihr (ihr seid). They sound identical and are confused constantly.
Every subordinate clause is set off by a comma. Ich hoffe dass du kommst is wrong; Ich hoffe, dass du kommst is right.
In, an, auf, über, unter take the accusative for movement toward (in die Stadt fahren) and the dative for position (in der Stadt wohnen).
Nouns, and words used as nouns, take a capital: das Schreiben, beim Lesen, alles Gute. A lower-case noun is a spelling error, not a style choice.
Sie and du change the verb (Sie kommen / du kommst) and the possessive (Ihr / dein). Sie is the default in business, with institutions and with anyone not offered the du; switching by accident inside one email is the error the reader notices first.
The checker flags a mixed register as style rather than as an error, so the decision stays yours. If a whole text needs to move from one register to the other, the tone changer rewrites it in one pass.
Students and apprentices in Germany, Austria and Switzerland, and international students whose German is strong but whose commas are not.
Professionals writing to German-speaking clients and authorities, where Sie, the capital nouns and the comma rules are read as competence.
Learners at B1 and above who want the case ending explained, not just replaced.
Yes. Check German without an account, within the per-check and daily word allowances shown beside the editor. Signing in raises them, and Pro removes the guest limits and the ads. The pricing page lists what each plan includes.
Standard German is the target; Swiss writing replaces ß with ss throughout, and Austrian usage differs in vocabulary rather than grammar. The checker applies the current spelling rules (the 1996 reform as amended in 2006). German is preselected on this page; change the language menu above the editor if the text is a different variant.
Yes, and in German the two overlap. The reformed spelling is now standard in schools and publishing: dass (not daß), Fluss, Schifffahrt with three f, and separate writing for kennenlernen or kennen lernen (both allowed). Older spellings are flagged as errors. Each of these is underlined where it happens, labelled spelling or grammar, with the standard form and the rule beside it.
Not unless you ask it to. A check corrects what is wrong and leaves your sentences as you wrote them; every change is a separate flag you accept or ignore. The Improve and Rewrite passes, which do change wording, are separate buttons, and the paraphraser is a separate tool.
Yes. Paste the text or drop in a .docx, .pdf or .txt file; the document is checked paragraph by paragraph and the corrected version can be copied or exported. Long documents are checked within the per-check allowance and continue as you scroll.
That is where the reason attached to each flag earns its keep. German has four cases and three genders, and the article, adjective and noun change together: der gute Mann, den guten Mann, dem guten Mann, des guten Mannes. A learner sees which rule was broken, not just the corrected word, and can accept the fix or read why it was raised before deciding.
Translate the corrected German, change its tone, or shorten it. One plan covers every tool.
Each page opens the checker with that language already selected and explains what it looks for in it. The picker above the editor covers more than seventy languages in all.
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