Readability Scorer

Write clearly. Get instant feedback. Readability Scorer shows you a live readability score as you type in any text field. No copy-pasting, no switching tabs. Just write and see your score update in real time. ★ LIVE SCORING A floating score badge appears next to any text field. Green means clear, red means complex. Click to see the full breakdown. ★ 7 READABILITY FORMULAS Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, Coleman-Liau, SMOG, ARI, and Dale-Chall — all calculated instantly. ★ DEEP WRITING ANALYSIS Spot passive voice, unnecessary adverbs, complex words (with simpler alternatives), clichés, hedge words, and sentence repetition. Color-coded sentence highlighting shows exactly what to fix. ★ INLINE HIGHLIGHTING See issues highlighted directly in your text as you type — hard sentences, passive voice, adverbs, complex words, and more. Uses CSS Custom Highlight API with zero DOM modification. Works on any contenteditable field (opt-in). ★ WRITING GOALS Set a daily word count target and build a writing streak. Track your progress and lifetime words analyzed. ★ WORKS EVERYWHERE Any textarea or contenteditable field on any website. ★ 100% PRIVATE All analysis runs locally in your browser. No data is ever sent to any server. No analytics, no tracking, no network requests. ★ CUSTOMIZABLE Dark mode, light mode, or match your system. Adjust panel border style and opacity to fit your workflow. FREE: 5 analyses per day with Flesch Reading Ease + basic stats (word count, sentences, reading time, grade level). PRO (€4.99/mo): Unlimited analyses, all 7 formulas, passive voice, adverbs, complex words, clichés, hedge words, repetition detection, sentence-level highlighting, inline highlighting, and writing goals.