Check Greek spelling, grammar and punctuation free. Every issue underlined where it happens, with the reason attached.
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Greek grammar checker
Greek grammar checked with the reason attached
Paste Greek and every issue is underlined where it happens, labelled spelling, grammar, punctuation or style, with the reason attached. Greek is written in the Greek alphabet, and the monotonic accent, cases, the Greek question mark 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.
How to check Greek grammar
Three steps. The third is the one most checkers leave out.
1
Paste or upload the Greek
Type, paste or drop in a document. Greek is already selected as the language on this page. If the text turns out to be something else, the detector says so and you can change it.
2
Read the flags
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.
3
Accept, ignore or read why
Click a flag to see the fix and the rule behind it, then accept it or ignore it. Greek has rules that speech does not reveal, and the reason is there so the same error is not made twice.
What the checker looks at in Greek
The parts of Greek grammar and spelling where a checker has to know the language, not just the words.
AgreementThree genders, four cases (nominative, genitive, accusative, vocative) and articles and adjectives that agree: ο καλός άνθρωπος, η καλή γυναίκα, το καλό παιδί, του καλού ανθρώπου. The final -ν of the accusative article (τον, την) is kept or dropped by a rule about the following sound.
VerbsAspect is built into the stem (γράφω, έγραψα), and the subjunctive with να replaces the infinitive. The passive voice has its own endings, and the augment ε- on past forms appears only when it carries the stress (έγραψα, but γράψαμε).
Spelling and diacriticsSince 1982 Greek uses a single accent, the tonos, on the stressed syllable of every word with two or more syllables, plus the diaeresis on ϊ and ϋ. Leaving the accent off, or using the old polytonic breathings, is a spelling error in standard Greek.
PunctuationThe Greek question mark is the semicolon (;), and the raised dot (·) does the work of the semicolon. Quotation marks are « ». Decimals take a comma.
Capital lettersDays and months are capitalised (Δευτέρα, Ιανουάριος); nationality adjectives are lower case (ελληνικός) while the noun for a person takes a capital (Έλληνας). Text in all capitals drops the accent; a word with only an initial capital keeps it (Έλληνας, Άννα).
Common mistakes in Greek writing
Five errors Greek readers notice at once, and what the checker does with each.
The missing tonos
Every word of two or more syllables carries one accent. Πότε (when) and ποτέ (never) differ only by its position; a word without it is misspelled.
Question mark or semicolon
The Greek question mark is ; and the Latin ? is a foreign character in Greek text. The raised dot · separates clauses where English would use a semicolon.
The final -ν
Τον πατέρα, τον κύριο (kept before a vowel, κ, π, τ and the double consonants), τη μητέρα (dropped before other consonants). Applies to τον, την, έναν, δεν and μην.
Historical spelling of i and o
Παιδί, φίλη, πολύ, κρίση: the sound is the same, the letters are not. The checker knows the word; the writer cannot hear the difference.
Wrong case after a preposition
Most prepositions take the accusative (από τον, με την, σε αυτόν), and the genitive after a noun (το βιβλίο του φίλου). Learners default to the nominative.
Formal and informal Greek
Εσύ against εσείς: εσείς with the plural verb (εσείς έχετε) is the formal singular for strangers, customers and elders, and the polite plural is grammatical, so mixing the two inside one message is an error.
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.
Who checks Greek here
1
Students in Greece and Cyprus, and the diaspora writing Greek on a Latin keyboard.
2
Businesses writing to Greek customers where εσείς and the accent are expected.
3
Learners who want the case and the accent explained rather than replaced.
Greek grammar checker FAQs
Is the Greek grammar checker free?
Yes. Check Greek 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.
Which Greek does it check?
Standard written Greek, spelled as the current standard has it. Greek has six ways to write the sound i (ι, η, υ, ει, οι, υι) and two for o (ο, ω) and e (ε, αι), so historical spelling is the main source of errors, together with the accent and the final -ν rule (τον άνθρωπο but τη γυναίκα). Greek is preselected on this page; the language menu above the editor changes it if the text turns out to be something else.
Does it correct Greek spelling as well as grammar?
Yes, and in Greek the two overlap. Greek has six ways to write the sound i (ι, η, υ, ει, οι, υι) and two for o (ο, ω) and e (ε, αι), so historical spelling is the main source of errors, together with the accent and the final -ν rule (τον άνθρωπο but τη γυναίκα). Each of these is underlined where it happens, labelled spelling or grammar, with the standard form and the rule beside it.
Will it rewrite my Greek?
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.
Can I check a whole Greek document?
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.
Is it useful if I am learning Greek?
That is where the reason attached to each flag earns its keep. Three genders, four cases (nominative, genitive, accusative, vocative) and articles and adjectives that agree: ο καλός άνθρωπος, η καλή γυναίκα, το καλό παιδί, του καλού ανθρώπου. 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.
After the check
Translate the corrected Greek, 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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