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Check your English grammar — free
Write a sentence. We find the grammar, spelling and punctuation mistakes, show you the correct version and explain each mistake in simple English.
More than a checker — with a free account
Learn grammar by practising your own mistakes.
Smart review of your mistakes
Every question you get wrong comes back after well-timed gaps, until you stop getting it wrong.
Grammar lessons, A1 to A2
Short lessons with simple explanations, examples, common mistakes and interactive exercises.
AI tutor
Ask why your answer was wrong, write and get corrections, or practise an English conversation.
Find your weak points
A short test shows which topics you get wrong most, so your practice focuses on them.
Questions and answers
Is the grammar checker really free?
Yes. You do not need an account to check a sentence. To prevent abuse, the number of checks per hour is limited.
What does it check?
Grammar (verb tenses, helper verbs, articles, prepositions, word order…), spelling, word choice and punctuation. Each mistake is explained in simple English.
How much text can I check?
Up to 400 characters — one or a few short sentences.
What happens to my text?
It is only sent to be checked and is recorded in the site’s usage log. It is not linked to any account and never published. Even so, please do not write personal information.
Why create an account?
Your mistakes are saved and practised again, you get lessons, tests, a dictionary and the AI tutor, and your progress is on all your devices. It is free and needs no email or phone number.