AlphaMoatによると、2026-09時点でChrome拡張機能Clutioのユーザー数は96(前月比 -1%)、評価は5(4件のレビュー)で、9,324件のAIブラウザ拡張機能中4,301位、教育・研究では676件中328位です。
Read news & articles in another language → click any word for AI dictionary, in-context meaning & pronunciation. Saves to vocab. Read news & articles in another language → click any word for AI dictionary, in-context meaning & pronunciation. Saves to vocab.
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Dictionaries list definitions. Google Translate flattens sentences. Clutio reads the surrounding sentence and the whole page, then tells you what the word means right here, right now — with nuance, example sentences, native pronunciation, and translation, in place.
Every looked-up word is auto-saved to your vocabulary, and review quizzes are generated from the actual sentences you read — so reading is studying.
No account. No server. Your vocabulary stays in your browser. The core experience is free on Groq's ultra-fast daily quota.
✅ Why Clutio
🚀 Core Features 1. Context-aware AI translation — select a word and the owl button appears; or use the right-click menu or a shortcut (Alt+S · Mac ⌃S). Reads the surrounding sentence and page, then gives the meaning right here alongside the general one 2. 🔊 Pronunciation (TTS) — one click from the popup, your vocabulary list, or a review card 3. Automatic vocabulary & review — every lookup is saved with its context → cloze, multiple-choice and type-to-recall quizzes, a full-screen review tab (Alt+R · Mac ⌃R), a dashboard with activity heatmap, due count and streak, plus PDF / CSV export 4. 🖍 Saved-word highlighting — words you already saved are marked as you read; hover for meaning and pronunciation (no AI call) 5. 🔥 Streak tiers — 6 levels (Spark → Cosmic), layered motion effects as you stay consistent 6. Three AI engines — Groq (free and ultra-fast) / ChatGPT / Claude, BYOK
🎯 Made For
📝 Get Started in 30 Seconds 1. Click "Add to Chrome" 2. Setup wizard gets you a free Groq key (phone verification only, no billing) — no model permission setup needed 3. Select a word on any page → click the owl button or press Alt+S (Mac ⌃S) — done
🆕 Release Notes v2.1.0 — Updated to match the models now available on Groq v2.0.9 — ⌨️ Keyboard shortcuts (save Alt+S / Mac ⌃S, review Alt+R / Mac ⌃R) v2.0.0 — 🧠 Memory upgrade · full-screen Review tab · type-to-recall grading (typo-tolerant, CJK-aware) · learning dashboard with activity heatmap, due counts & streak tier v1.5.0 — Switched the free engine from Google AI to ⚡ Groq v1.4.1 — Streak tier system · 6 levels · cumulative motion, particles, aurora effects · reduce-motion preference v1.4.0 — 🔊 TTS pronunciation · upgraded context interpretation · floating owl quick-translate · refined popup UI v1.3.x — ChatGPT and Claude support, model selection v1.2.x — Word detail view, save/download sync, popup UI refresh v1.1.x — 7-language UI, auto vocabulary + auto quiz, PDF / CSV export
💡 FAQ Q. Is it really free? A. Yes — Groq's free daily quota covers the whole core experience, no billing setup, phone verification only. No model permission configuration required. Q. Are there keyboard shortcuts? A. Yes. Select a word and press Alt+S (Mac ⌃S) to save it, or Alt+R (Mac ⌃R) to open the review tab. Remap them at chrome://extensions/shortcuts. Q. Does my data leave my device? A. No. Vocabulary and history live in your browser's IndexedDB only. Q. Works on PDFs? A. Yes, on Chrome's PDF viewer and most reader modes. Q. Offline? A. Vocabulary and quizzes work offline; AI translation needs network.
Install now and turn every webpage into vocabulary practice.
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+ 比較データ月:2026-09 · ユーザー数と評価はChromeウェブストアの公開データを月単位で集計したものです。詳しくはデータの方法論をご覧ください。