Grammar Checker.cc
There's no signup wall and no word-count trap that pushes you toward a paid plan, which is rare for a grammar checker since most competitors gate the useful corrections behind an account. The lack of any company name, working about page, or privacy policy is a real gap for a tool that has you paste your own writing into a text box.
Pros
- completely free with no account required
- checks grammar, punctuation, spelling, and sentence structure in one pass
- includes basic paraphrasing and style suggestions
- results appear immediately on the same page
Cons
- 1,000-word cap per check with no way to extend it
- no browser extension, only the standalone page
- privacy policy and about pages both return not-found errors, so there's no way to see who runs it or how text is handled