Translate words and build vocabulary across websites, PDFs, and YouTube videos without leaving the page.
WordByWord is a browser extension for language learners that enables in-context translations, vocabulary tracking, and AI training across any website, PDF, or YouTube video. It calculates comprehension scores based on your actual vocabulary and exports seamlessly to Anki.
- Audience
- Language learners and polyglots who want to expand their vocabulary naturally while browsing the web, reading PDFs, or watching YouTube.
- Category
- language-learning, browser-extension, education, ai-tools
- Key features
- Instant hover translations and word saving on any website or PDFInteractive YouTube subtitle translation with auto-pausePersonalized comprehension score showing known word percentages per pageSpotlight mode to highlight vocabulary gaps and high-impact wordsSmart flashcards and AI-powered vocabulary training sessionsVoiceover audio pronunciation with enhanced quality supportCustom and community public vocabulary collectionsVocabulary export to Anki, CSV, and PDFSupport for 50+ languages simultaneously