All tools
Free, fast, private text-analysis tools — readability scores, syllable counts, passive-voice detection, reading time and more. No signup, results in milliseconds.
Readability scores
Flesch Reading Ease Calculator
Classic 0–100 readability score.
Try nowFlesch–Kincaid Grade Level Calculator
U.S. grade level for your text.
Try nowGunning Fog Index Calculator
Penalises complex (3+ syllable) words.
Try nowSMOG Index Calculator
Health & medical text grade level.
Try nowColeman–Liau Index Calculator
No syllables needed — just characters.
Try nowAutomated Readability Index (ARI) Calculator
Character‑based grade level estimate.
Try nowDale–Chall Readability Calculator
Uses the classic 3,000 familiar‑word list.
Try nowFry Readability Graph Calculator
Visual plot — sentences vs. syllables / 100 words.
Try nowRaygor Readability Graph Calculator
Like Fry but using letters per 100 words.
Try nowFORCAST Readability Calculator
For technical / non‑narrative text.
Try nowLinsear Write Readability Calculator
Easy vs. hard word weighting (Air Force origin).
Try nowLIX Readability Calculator
International (Swedish‑origin) index.
Try nowText analysis
Lexical Density Calculator
% content words vs. function words.
Try nowLexical Diversity (TTR) Calculator
Vocabulary variety — type‑token ratio.
Try nowSyllable Counter & Analyzer
Total + per‑word syllable counts.
Try nowPassive Voice Detector
Highlight passive sentences in your writing.
Try nowSentence Length & Variety Analyzer
Sentence length stats and variety score.
Try nowWord Frequency Analyzer
Top words with optional stopword filtering.
Try now