Readability Checker

Free Readability Checker — Flesch Score & Grade Level

Most tools show one or two readability scores. This one gives you six: Flesch Reading Ease, Flesch-Kincaid grade level, Gunning Fog, SMOG, Coleman-Liau, and ARI. You also see which sentences are hardest to read, how often you use passive voice, and where weakeners like "very" or "really" show up. Everything runs in your browser—paste your text and the scores update as you type. No account, no uploads.