Write it right, the first time.
ClearGrammer catches grammar slips, finds the perfect synonym, and explains the rule in plain English — built for American students, writers, and professionals.
No sign-up needed · Works in your browser · Built for U.S. English
Everything your writing needs, in one place
ClearGrammer combines correction, vocabulary, and clarity tools so you never have to switch tabs mid-sentence.
Smart Grammar Checks
Catches subject-verb agreement, punctuation, and tense errors most spell-checkers miss.
10,000+ Synonyms
A living thesaurus with everyday American English alternatives, not obscure textbook words.
Plain-English Explanations
Every correction comes with a short reason, so the rule actually sticks next time.
From messy draft to polished sentence
Paste your text, get instant, color-coded suggestions, and learn the “why” behind every fix.
- ✓ Paste any sentence, email, or essay
- ✓ Get grammar, spelling, and style fixes
- ✓ Tap a word for instant synonyms
- ✓ Apply changes with one click
Word of the Day
Build your vocabulary one word at a time — new word, meaning, and example every day.
Trusted by writers across the U.S.
ClearGrammer cleaned up my grad school essays in minutes. The explanations actually taught me something.
I use the synonym finder daily for work emails. Fast, simple, no clutter.
Finally a grammar tool that doesn’t bury the free features behind a paywall.