Alphine: AI Dictionary for English Learners

No more pausing to look things up—understand tricky words instantly while you browse.

Alphine makes reading the web effortless by instantly explaining complex words with clear definitions or translations, right on the page. No more copy-pasting into a dictionary. Alphine highlights tricky words as you browse and gives you instant explanations, powered by AI. Best of all? It runs entirely on your device. Your data never leaves your browser, so your reading stays private and secure. ➤ How it works • Detects difficult words in real time as you read • Hover or click for instant definitions or translations (currently supports Spanish, French, Japanese, and Simplified Chinese) • Save words to your personal vocabulary list • Lightweight, fast, and distraction-free ➤ Why Alphine? • Instant word help without breaking your flow • 100% client-side—your data stays private • Perfect for students, language learners, and curious readers