Readability Score Calculator — Flesch-Kincaid & 4 More Tests (Free)

Paste your text → get Flesch Reading Ease, Grade Level, Gunning Fog, Coleman-Liau & SMOG scores in one click. Free, instant, no signup.

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KDP Tools is a free, AI-powered platform helping self-publishers succeed on Amazon Kindle Direct Publishing. We offer 50+ tools including royalty calculators, keyword research, book cover design, AI book writers, niche research, and more — all built specifically for KDP authors.