Wordbin — Vocabulary Builder & Flashcards from Any Page

Save words while you read. AI fills in the definition, translation and example. Spaced repetition helps you remember.

Wordbin turns the words you meet while reading into flashcards — without the 2-minute card creation ritual. Reading articles, docs or subtitles in another language? Select a word, right-click, "Add to Wordbin" — done. AI fills in the definition, translation and an example sentence (Pro), the source page is attached automatically, and FSRS spaced repetition schedules your reviews so the word actually sticks. HOW IT WORKS 1. Select a word on any page → right-click → "Add to Wordbin" (or add it manually from the popup). 2. AI auto-fills the card: definition, translation, example sentence (Pro feature — manual entry is always free). 3. The source page is saved with the word, so you remember where you met it. 4. Review on wordbin.app with FSRS — the same modern spaced repetition algorithm Anki switched to. WHY NOT JUST ANKI? Anki is great at reviews and terrible at capture. Making one good card takes a minute or two, so most words you meet never become cards. Wordbin is capture-first: saving a word takes one click, the card builds itself, and review is already scheduled. WORKS WITH ANY LANGUAGE Wordbin is language-agnostic: English, Spanish, German, Japanese, Russian — the AI dictionary works for any language pair. Set your default word language once, override it any time. KEY FEATURES • One-click capture: select text → right-click → saved. • Manual quick-add from the extension popup. • AI auto-fill: definition, translation, example sentence (Pro). • Automatic source detection — every word remembers the page you found it on. • FSRS spaced repetition reviews on wordbin.app. • Recently saved words right in the popup. • Light / dark / system theme. • Interface in English, Russian, Spanish and German. PRIVACY-FRIENDLY BY DESIGN • Saves text only when you explicitly choose to save it. • Does not collect your browsing history. • Does not continuously monitor pages. • Your data is used only to provide Wordbin vocabulary features. A free Wordbin account is required. The free plan includes word capture, sources and FSRS reviews; AI auto-fill is part of Wordbin Pro.