WordByWord – Translator & Flashcards

Translate text and YouTube subtitles. Save words and study with adaptive flashcards.

Turn every page and YouTube video into a language lesson. With WordByWord, highlight text to translate instantly, save words to your vocabulary, add your own meanings, and reinforce knowledge with adaptive flashcards! Use YouTube to learn languages — translate and save words or phrases directly in the player. Hover over subtitles to auto-pause, see full-sentence context, and save vocabulary in seconds. Hear clear pronunciation, review on desktop or mobile with flashcards, and make language learning part of everything you browse. 🌍 ON-PAGE TRANSLATION • Highlight text on any website for an instant translation • Add your own definitions for deeper understanding • Don’t worry about examples — we automatically save a sentence from the context where the word was found 📺 YouTube LEARNING • Translate and save words or phrases directly in the player • Auto-pause on hover so you never miss a subtitle • Full-sentence display to understand context 🃏 FlashCards YOUR WAY • Full control over your collections — you decide what to include in your sets • Set knowledge status for each word to track progress • Hide terms or definitions, choose voice (male/female), mark your knowledge level • Listen in different modes to strengthen pronunciation and memory ⚡ BUILT FOR CONSISTENCY • 50+ languages supported • Desktop + mobile-friendly review for learning anywhere ✅ Install, highlight text, save to vocabulary, and review with flashcards — WordByWord streamlines the path from discovery to retention. Learn the language — Word By Word!