Check Russian spelling, grammar and punctuation free. Every issue underlined where it happens, with the reason attached.
Untitled documentReady
0 words
Let’s write!
Start typing, paste your text, or upload a Word, PDF or text file. You can also drop a file here.
Drop your file to open it.docx, .pdf or .txt
0 characters0 sentences0 / 350 words
Download as
Russian grammar checker
Russian grammar checked with the reason attached
Paste Russian and every issue is underlined where it happens, labelled spelling, grammar, punctuation or style, with the reason attached. Russian is written in the Cyrillic alphabet, and six cases, -тся and -ться, не with verbs, commas 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 Russian grammar
Three steps. The third is the one most checkers leave out.
1
Paste or upload the Russian
Type, paste or drop in a document. Russian 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. Russian 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 Russian
The parts of Russian grammar and spelling where a checker has to know the language, not just the words.
AgreementSix cases and three genders; adjectives, participles and past-tense verbs agree with the noun in gender, number and case: новый дом, новая книга, новые дома, в новом доме. Numerals impose their own cases (два дома, пять домов).
VerbsAspect (делать/сделать) is the core of the verb system, and the past tense marks gender (он сделал, она сделала). The infinitive -ться and the third person -тся are pronounced the same and confused constantly; verbs of motion with prefixes (пойти, прийти, уйти) carry direction and completion.
Spelling and diacriticsRussian has no accents in ordinary text, but ё is often written as е, and the stress that decides between замо́к and за́мок is not marked. The hard sign ъ and soft sign ь are letters that are dropped or misplaced (подъезд, читаешь).
PunctuationCommas are placed by rule, not by pause: before every что, который, потому что, чтобы, around participial and adverbial phrases, and never before и in a simple list. The dash replaces the missing verb to be (Москва — столица). Quotation marks are guillemets « ».
Capital lettersDays, months, languages and nationalities are lower case (понедельник, январь, русский). Вы and Ваш are capitalised in letters to one person as a courtesy.
Common mistakes in Russian writing
Five errors Russian readers notice at once, and what the checker does with each.
-тся or -ться
Он учится (he studies, third person, no soft sign) but он хочет учиться (infinitive, soft sign). Ask what does he do? for -тся, what to do? for -ться.
не together or apart
Together with nouns, adjectives and adverbs when there is no contrast (неправда, недорогой); apart from verbs, participles with dependent words and anything contrasted (не знаю, не дорогой, а дешёвый).
Missing comma before что, который, чтобы
Я знаю, что он придёт. Дом, который стоит на углу. The comma is grammatical, not optional.
Case after a preposition or numeral
Два дома, пять домов; в городе, в город. The noun ending answers to both the preposition and the number.
Adverbial participle with the wrong subject
Подъезжая к станции, у меня слетела шляпа is the textbook error: the participle must share the subject of the main clause.
Formal and informal Russian
Ты and Вы: Вы takes the plural verb (Вы знаете) and is the default in business, official and any first contact; capitalising Вы in a letter is polite, in a group message it is wrong. The patronymic (Иван Петрович) accompanies Вы in formal address.
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 Russian here
1
Students in Russia and Russian-speaking students abroad, where -тся/-ться and the commas are marked.
2
Businesses writing to Russian-speaking customers, where Вы with a capital and the patronymic are expected.
3
Heritage speakers who speak fluently but write rarely.
Russian grammar checker FAQs
Is the Russian grammar checker free?
Yes. Check Russian 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 Russian does it check?
Standard written Russian, spelled as the current standard has it. Не written together or apart (неправда, не знаю), -тся/-ться, unstressed vowels in the root (that have to be checked against a stressed form), and the soft sign after ш, ж, ч in the second person (пишешь) are the errors every dictation targets. Russian 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 Russian spelling as well as grammar?
Yes, and in Russian the two overlap. Не written together or apart (неправда, не знаю), -тся/-ться, unstressed vowels in the root (that have to be checked against a stressed form), and the soft sign after ш, ж, ч in the second person (пишешь) are the errors every dictation targets. 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 Russian?
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 Russian 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 Russian?
That is where the reason attached to each flag earns its keep. Six cases and three genders; adjectives, participles and past-tense verbs agree with the noun in gender, number and case: новый дом, новая книга, новые дома, в новом доме. 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 Russian, 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.
Upgrade
Drop your file to open it