Grammar Checker
Fix grammar, spelling, and punctuation errors. Get detailed feedback with suggestions for stronger writing.
Works in 50+ languages Instant analysis Text never stored by default
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Your Text
0 characters0 / 300 words
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Grammar Report
Your grammar report will appear here.
Default settings: British English4 of 4 checks
English Variant
Check Types
Expert-level checking No signup required Text never stored by default
How it helps
Catches hidden errors
Subject-verb agreement, comma splices, dangling modifiers, and the homophones spell-checkers miss.
Explains every fix
Each error includes a one-sentence explanation of the rule so you learn as you go.
Suggests better phrasing
Beyond minimum corrections, see how a confident writer would phrase the whole sentence.
Supports UK English
British spelling, punctuation, and grammar conventions, not just American defaults.
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Common Grammar Mistakes and How to Fix Them
Even confident writers make grammar mistakes. The most common errors include subject-verb agreement (“the team are” vs “the team is”), misplaced apostrophes (“its” vs “it's”), and comma splices (joining two complete sentences with just a comma). These mistakes are easy to overlook when you're focused on getting ideas down.
Run-on sentences are another frequent problem. When two independent clauses are joined without proper punctuation or a conjunction, the result is hard to read. Our grammar checker identifies these and suggests appropriate fixes. Whether that's adding a full stop, a semicolon, or a conjunction.
Homophones trip up writers constantly: their/there/they're, your/you're, affect/effect, than/then. Spell checkers won't catch these because both words are spelled correctly. You need a grammar checker that understands context.
British English vs American English. Key Differences
The differences between British and American English go beyond spelling (colour/color, realise/realize). Grammar conventions differ too: British English treats collective nouns as plural (“the team are playing”), while American English treats them as singular (“the team is playing”).
Punctuation placement varies as well. British English typically places commas and full stops outside quotation marks when they're not part of the quote, while American English places them inside. Date formats, number formatting, and vocabulary choices (lift/elevator, boot/trunk) all vary.
Our grammar checker respects your chosen variant. Select British English and it won't flag “colour” as a spelling error. But it will flag “color” as one.
How Grammar Checking Improves Your Writing
Good grammar isn't about following rules for their own sake. It's about clarity. When your grammar is correct, readers focus on your ideas rather than stumbling over errors. In professional settings, grammar mistakes can undermine your credibility.
Our grammar checker goes beyond basic error correction. The style suggestions identify wordy constructions, passive voice overuse, and unclear phrasing. These aren't strict rules. They're suggestions to make your writing more effective. Use them as a starting point, then apply your own judgement about what works best for your specific context.
For the best results, write first without worrying about grammar. Get your ideas down, then run the checker to catch errors you missed. This two-pass approach produces better writing than trying to get everything perfect on the first draft.
Frequently Asked Questions
Yes. Check up to 300 words, 3 times per day for free.
Yes. Select your preferred variant and the checker will use the appropriate spelling and grammar conventions.
Very accurate for grammar, spelling, and punctuation. Style suggestions are recommendations, not strict rules. Use your judgement.
Absolutely. Perfect for essays, dissertations, reports, and research papers.
Our checker analyses your entire text in one go and provides a comprehensive error list with explanations. Try both and see which you prefer.