Boost your vocab while you browse! Instantly look up, save, and practice words with personalized vocab suggestions and auto-generated quiz questions. Supports 5+ languages. Free Chrome extension for effortless language learning.

Buddi is an AI-powered learning companion backed by learning science. Explain concepts in your own words, get instant feedback on correctness, clarity, and completeness, then revise and track your progress. Learn actively, not passively.