Grammarly’s Free tier gives every user real-time spelling and grammar corrections, tone detection and a monthly allowance of AI writing prompts, at no cost whatsoever.

Install the free browser extension, desktop app or keyboard, or use the free web editor, and Grammarly checks your writing wherever you type – email, docs, social posts and more.

Advanced features like full sentence rewrites, plagiarism detection and unlimited AI prompts sit behind the paid Grammarly Pro plan, but the core free writing assistant has no time limit.