貼り付けるだけで読みやすさを計算。
Flesch、Gunning Fog、SMOG、Dale–Chall などプロが使う公式で文章を評価。登録不要、押し付けがましい広告なし。
- No signup
- Runs in your browser
- 18 languages
- Open formulas
Plain English for most adults (8th–9th grade).
- Words
- 241
- Sentences
- 14
- Avg words / sentence
- 17.2
- Syllables / word
- 1.48
ブラウザで瞬時に
入力中にローカルで計算。待ち時間ゼロ、テキストのアップロードなし。
プライバシー第一
テキストは端末から外へ出ません。コンテンツのログもデータ販売もありません。
古典的な公式を正確に
正規の Dale–Chall 単語リストと実績ある音節カウンタで丁寧に実装。
18言語対応
RTLを含む18言語のUI。各ツールが対応する入力言語を明示。
人気ツール
すべてのツール →Flesch Reading Ease Calculator
Classic 0–100 readability score.
今すぐ試すFlesch–Kincaid Grade Level Calculator
U.S. grade level for your text.
今すぐ試すGunning Fog Index Calculator
Penalises complex (3+ syllable) words.
今すぐ試すReading Time Estimator
How long does your text take to read?
今すぐ試すSyllable Counter & Analyzer
Total + per‑word syllable counts.
今すぐ試すSMOG Index Calculator
Health & medical text grade level.
今すぐ試すすべての計算ツール
読みやすさスコア
Flesch Reading Ease Calculator
Classic 0–100 readability score.
今すぐ試すFlesch–Kincaid Grade Level Calculator
U.S. grade level for your text.
今すぐ試すGunning Fog Index Calculator
Penalises complex (3+ syllable) words.
今すぐ試すSMOG Index Calculator
Health & medical text grade level.
今すぐ試すColeman–Liau Index Calculator
No syllables needed — just characters.
今すぐ試すAutomated Readability Index (ARI) Calculator
Character‑based grade level estimate.
今すぐ試すDale–Chall Readability Calculator
Uses the classic 3,000 familiar‑word list.
今すぐ試すFry Readability Graph Calculator
Visual plot — sentences vs. syllables / 100 words.
今すぐ試すRaygor Readability Graph Calculator
Like Fry but using letters per 100 words.
今すぐ試すFORCAST Readability Calculator
For technical / non‑narrative text.
今すぐ試すLinsear Write Readability Calculator
Easy vs. hard word weighting (Air Force origin).
今すぐ試すLIX Readability Calculator
International (Swedish‑origin) index.
今すぐ試すテキスト分析
Lexical Density Calculator
% content words vs. function words.
今すぐ試すLexical Diversity (TTR) Calculator
Vocabulary variety — type‑token ratio.
今すぐ試すSyllable Counter & Analyzer
Total + per‑word syllable counts.
今すぐ試すPassive Voice Detector
Highlight passive sentences in your writing.
今すぐ試すSentence Length & Variety Analyzer
Sentence length stats and variety score.
今すぐ試すWord Frequency Analyzer
Top words with optional stopword filtering.
今すぐ試す