Look up any word instantly. Save the ones worth remembering—without leaving the page. Master them with smart flashcards—all in your browser.
Already have vocab lists? Import CSV files from Anki, Quizlet, or spreadsheets.
From discovery to mastery in three simple steps
Select text while browsing to see definitions, pronunciation, and examples—no tab switching needed. Use it as a quick dictionary or save words to learn them later.
Like a word? Click "Save" to add it to your collection with the full sentence context—in under 2 seconds, without leaving the page. Or just close the popup—saving is optional.
Review your saved words with spaced repetition, quiz yourself with multiple choice, and track your progress to mastery.
Built for people who actually want to remember words
Looking up words is easy—Google Dictionary does that. But what happens when you want to remember a word?
Bellek solves this. Select a word, see the definition, click "Save"—done. Under 2 seconds. Your reading flow never breaks.
Bellek saves the actual sentence where you found the word. When you review "ephemeral" later, you see how it's really used.
Memory boostBuilt on proven algorithms that show words right before you forget them. Words you know appear less. Words you struggle with appear more. Study 5 minutes a day and watch your vocabulary grow.
Your vocabulary belongs to you. Export anytime. We don't sell your data or track your browsing.
No app download needed. Just open your sync URL on any device—iOS, Android, tablets. Works everywhere.
No matter how you read, Bellek helps you remember
Studying for SAT, GRE, or academic courses? Look up technical terms instantly while researching. Save the important ones. Organize by subject. Export for exams.
Master industry jargon and technical terminology as you encounter it in articles and reports. Build domain expertise naturally while staying current.
Reading challenging literature or non-fiction? Never skip a word again. Look it up instantly, save the ones you want to master, and build your literary vocabulary.
Expanding your English vocabulary? Save words in context from real articles and books. Learn how native speakers actually use words, not just textbook definitions.
From discovery to mastery—here's how it works
While reading any website, simply select a word you want to look up. The popup appears automatically.
The company's ephemeral success in the market quickly faded as competitors emerged with better solutions...
Bellek popup appears instantly with the definition. Click save—the word and full sentence context are captured automatically.
Access your dashboard to study with flashcards and track your progress to mastery
Powerful features that make vocabulary building effortless
Select any word and see the definition instantly in a popup overlay. Full pronunciation, part of speech, and example sentences—no tab switching needed.
One click saves the word with the actual sentence where you found it. Context helps memory—when you review words later, you'll remember exactly how they're used.
Track your vocabulary growth with streaks, mastery levels, and review history. See which words you've mastered and which need more practice.
Flashcards with spaced repetition, multiple choice quizzes, and smart review mode that focuses on words you struggle with.
Your vocabulary syncs automatically across all devices. Add words on desktop while browsing, study on your phone during your commute.
Already have vocabulary lists in Anki, Quizlet, or spreadsheets? Import them instantly. Want to use your Bellek words elsewhere? Export anytime.
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Look up words instantly. Save the ones that matter. Master them with flashcards.