ProWritingAid
Free writing checker with daily limits on reports and AI tools.
Writing
What you get
Grammar, spelling and punctuation checks, the word explorer and thesaurus, 40+ document types, 10 rephrases, 3 Sparks and 3 Creative Nudges a day, and 2 runs of each line editing report a day.
How to get it
Click "Try For Free" on prowritingaid.com/pricing.
What it requires
Not stated on the pricing page.
The catch
Free only gives suggestions for 500 words at a time; Premium ($30 a month billed monthly) checks documents of any length.
From the official page · checked Oct 26, 2026