Clutio - AI Vocabulary Builder

Click any word → AI explains meaning, context & nuance. Auto-generates flashcards & quizzes. Free with Google AI. 100% private.

Click any word, AI explains it in context. Auto-saves to your vocabulary, builds cloze quizzes, native pronunciation. Free. ─────────────────────────────────────── 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 daily quota (14,400 requests/day with Llama 3.1 8B — ultra-fast inference). ✅ Why Clutio - Smarter than a dictionary: polysemy, idioms, technical jargon resolved in context - Effortless vocabulary: reading builds your word list automatically - Cloze quizzes from your own reading — TOEFL / IELTS / GRE / SAT-style retention - Fully local: search history and vocabulary never leave your device 🚀 Core Features 1. One-click AI context translation — double-click or drag-select a word, phrase, or sentence 2. 🔊 Native pronunciation (TTS) — hear the word with one click (v1.4.0) 3. Floating owl quick-translate button — appears on selection 4. Auto vocabulary + cloze & multiple-choice quizzes — PDF / CSV export 5. 🔥 Streak tiers (v1.4.1) — 6 levels (Spark → Cosmic), layered motion effects as you stay consistent 6. Three AI engines — Groq (Llama / Qwen / GPT-OSS, free) / ChatGPT / Claude, BYOK 🎯 Made For - Students prepping TOEFL, IELTS, GRE, SAT, Cambridge — learn words in context, not in flashcard isolation - Developers & researchers reading English docs, papers, GitHub, Stack Overflow in a non-native language - News readers: NYT, The Atlantic, Medium, The Economist, BBC - Multilingual learners: EN, ES, FR, DE, ZH, JA, KO — one extension for all - PDF & reader-mode readers: translate in place, no tab-switching 📝 Get Started in 30 Seconds 1. Click "Add to Chrome" 2. Setup wizard gets you a free Groq key (phone verification only, no billing) + enables required Allowed Models 3. Double-click any word on any page — done 🆕 Release Notes v1.5.0 — Switched free tier from Google AI to ⚡ Groq · 14,400 req/day Llama 3.1 8B (BEST) + Llama 3.3 70B + Qwen 3 32B (Quality) + Compound Mini (Fast) + GPT-OSS 20B 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 — 14,400 Groq requests/day on Llama 3.1 8B, no billing setup. (Phone verification required on Groq + a one-time "Allowed Models" enable in Groq Console.) 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.