✍️English Mistake Checker

Flag commonly confused English words like its/it's and then/than so you can double-check them before publishing

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How to Use the English Mistake Checker

Some English word pairs sound alike or look similar enough that they trip up even confident writers — its versus it's, then versus than, affect versus effect. This tool scans any text you paste in for 9 commonly confused word pairs: its/it's, their/there/they're, then/than, affect/effect, your/you're, who's/whose, loose/lose, accept/except, and complement/compliment. When one of those words shows up, it's flagged along with a short reminder of how each word in the pair is actually used.

This isn't a full grammar checker that parses sentence structure — it's a fast, targeted pass over a fixed watch list of the mix-ups people make most often in everyday writing. It's a handy last look before sending an email, posting on social media, or publishing a blog post.

Because it only flags whether a watch-list word appears — not whether it's used correctly in context — a "no matches found" result just means none of the 9 tracked words are in your text, not that the writing is free of every other error. For a full review, pair it with a proper grammar and spell checker.

Frequently Asked Questions

Does this tool catch every English grammar mistake?

No. It watches for a fixed list of about 9 commonly confused word pairs, like its/it's or affect/effect. It's not a full grammar checker — it's a quick reminder tool for the mix-ups people make most often.

If no watch-list words are flagged, does that mean my text is error-free?

It only means none of the 9 tracked word pairs appear in your text — it doesn't check for other grammar, spelling, or punctuation issues. For a thorough review, pair this with a full grammar checker.