CocoGrammar — AI English grammar coach that learns from your mistakes
CocoGrammar is a free AI-powered English grammar checker and writing coach. Write a sentence and get it corrected instantly. Every mistake you make becomes a lesson: CocoGrammar remembers the errors you repeat and presses them into a personalized grammar course built entirely from your own habits, so you stop tripping over the same rock twice.
How CocoGrammar works
- Write in plain English. Type any sentence into the writing surface — no prompts, no exercises to pick.
- Get an instant correction. CocoGrammar fixes the grammar, spelling, and phrasing and explains what changed.
- Learn from your own habits. Your corrections feed a personalized course of chapters and exercises drawn from the mistakes you actually make.
Pricing
CocoGrammar is free to start: the free plan includes 10 sentence corrections and 4 personalized course generations. Cocoa Unlimited is $5 per month for unlimited grammar corrections and unlimited personalized courses, and you can cancel anytime.
Who it’s for
CocoGrammar is for English learners, ESL students, and anyone who wants to improve their written English by fixing the errors they repeat — rather than working through generic textbook grammar drills.
learn sweetly
WRITEBADLY
Every slip you make becomes a lesson. Write a sentence, get it corrected, and we’ll press your mistakes into a course — about your own habits.
Pause after a sentence and your correction appears here.