Bellek - Smart Vocabulary Builder
Extension Actions
- Extension status: In-App Purchases
- Live on Store
Save words while browsing in 20 languages. Get instant definitions and translations, then master them with flashcards and quizzes.
Stop forgetting the words you look up.
Bellek turns passive reading into active learning in any language.
Bellek lets you save words while you browse and actually learn them. Highlight any word on any webpage — get the definition, synonyms, and difficulty level instantly. Save it with one click, and Bellek captures the original sentence as context so you always remember where you found it.
No switching tabs. No copying into apps. No Anki decks to build. No friction.
Whether you're expanding your English vocabulary, studying for IELTS or TOEFL, reading in a foreign language, or just collecting words that catch your eye — Bellek gives you one place to save them all and a system to actually remember them.
🌍 20 Languages
Read an English article, a French news site, a Turkish blog, or a Japanese forum — Bellek detects the language and finds the right definition. Set your native language to get translations alongside definitions, in any direction. German→Spanish, English→Japanese, French→Turkish — not just English.
🧠 Study What You Save
Flashcards with spaced repetition, multiple choice quizzes, and smart review that targets your weak spots. Bellek tracks your streak and mastery so you can watch yourself improve.
📂 Stay Organized
Group words into collections by topic, project, or language. Filter, sort, and search across everything. Import word lists from CSV. Export anytime. One system instead of scattered notes, screenshots, and forgotten bookmarks.
📱 Take It Anywhere
Open bellek.app on your phone or tablet to review and study on the go.
🔒 Your Data Stays Yours
Everything is stored locally in your browser. No account, no sign-up, no tracking.
💡 Non-Intrusive
Turn the definition popup on or off anytime from the extension icon. Bellek stays out of your way when you don't need it.
💎 Free
30 saved words
3 collections
Unlimited flashcards
3 translations per day
CSV import/export
💎 Premium (7-day free trial)
Unlimited saved words
Unlimited collections
Unlimited translations
Multiple choice quizzes
Smart review
Built for language learners, readers, students, and anyone building a stronger vocabulary — one word at a time.
WHAT'S NEW
v1.2.1 — Multilingual Update
Definitions and translations in 20 languages
Automatic page language detection
Native language translations inside the definition popup
Free: 3 translations/day | Premium: unlimited
Bug fixes and performance improvements
vocabulary builder, language learning, dictionary, flashcards, multilingual, save words, definitions, translations, word collector, study tools, spaced repetition, quiz, reading, ESL, IELTS, TOEFL
Latest reviews
- neslihan fidan
- This extension honestly couldn’t have come at a better time. I was buried in exams and final papers, constantly dealing with confusing terminology, and it became an absolute lifesaver. Being able to access everything from my phone during my long commutes was a game changer and helped me stay on track. Massive thanks to the brilliant mind behind this. 10/10 would recommend.
- Lachie DiPierdomenico
- Simple, smart, and effective This extension is exactly what I was looking for. I love that I can just right-click to look up a word and save it instantly without breaking my reading flow. The flashcards are great for quick study sessions, and the fact that it saves the source article is a brilliant touch. It runs smoothly and doesn't clutter my browser. Great work!
- Eda Gurdamar
- I truly couldn’t find an effective way to improve my vocabulary until now. I genuinely love this product. Whenever I come across a new word, I no longer skip it — I simply add it to Bellek, and it’s instantly ready for me to learn. Bellek is my portable memory for words. And fun fact: “Bellek” means “memory” in Turkish, which makes the name even more meaningful.
- Elif Sansoy
- The extension I've always wanted to have, simple UX, clean and straightforward. Now I get to keep an extended glossary of the professional vocab I come across during researches and leisure reads. 10/10!