Open-source alternatives to Duolingo

Learn English by constructing sentences with conjunctions — Learning English through the method of constructing sentences with conjunctions

↔ alternative to Duolingo

Personalized vocab language-learning app — A personalized language-learning tool that combines Duolingo-style lessons with your own curated vocabulary lists. Seamlessly add words from books, articles, or videos, and revisit them through interactive quizzes and LLM-generated lessons.

↔ alternative to Duolingo

AI English speaking practice desktop app for kids — HiKid - Your AI English Pal. A desktop app built with React and TypeScript, targeting children in non-English-speaking countries who want to practice English speaking and listening.

↔ alternative to Duolingo