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AI Grammar Checker

Detect and fix grammar, spelling, punctuation and style errors — with plain-English explanations for every correction, not just the fix.

Grammar errors Spelling Punctuation Style issues Passive voice Explanations
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Free · No credit card · 50 credits/day

What the grammar checker catches

✏️

Spelling errors

Catches typos, misspellings and homophone confusion (their/there/they're, affect/effect, its/it's).

📐

Grammar rules

Subject-verb agreement, tense consistency, pronoun agreement, dangling modifiers, run-on sentences.

💬

Punctuation

Comma splices, missing apostrophes, incorrect semicolon and colon use, misplaced quotation marks.

🎨

Style issues

Passive voice overuse, wordiness ("in order to" → "to"), redundancy, nominalizations.

🌍

ESL patterns

Article errors (a/an/the), preposition misuse, count vs. non-count nouns — common non-native English patterns.

📖

Explanations for each

Every suggestion comes with a plain-English explanation — learn the rule, not just the correction.

Frequently asked questions

What types of errors does the grammar checker catch?

The checker catches spelling errors, grammatical errors (subject-verb agreement, tense consistency, pronoun agreement), punctuation errors (comma splices, missing apostrophes), style issues (passive voice overuse, wordy phrases, redundancy), and clarity issues. It explains each correction so you learn from the feedback.

What is the difference between grammar and style checking?

Grammar checking catches rule violations — sentences that are technically incorrect. Style checking flags patterns that are technically correct but weaken writing — excessive passive voice, wordy phrases like "in order to", nominalizations ("make a decision" vs "decide"), and overlong sentences. Both matter for professional writing.

When should I override a grammar suggestion?

Override suggestions when: you deliberately use passive voice for emphasis, you write in a dialect where the "error" is standard, you use intentional fragments for effect, or the AI misunderstands domain-specific terminology. Grammar checkers are probabilistic — context always wins over the rule.

Does the grammar checker work for non-native English speakers?

Yes, and it's especially valuable for ESL writers. Common non-native patterns caught: article errors (a/an/the), preposition misuse (in/on/at), verb tense consistency, count vs. non-count noun errors. The plain-English explanations help build long-term grammar intuition.

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