OpenTutor

The first block-based adaptive learning workspace that runs locally. Upload any material → get AI-generated notes, quizzes, flashcards, and an adaptive tutor. Open source, self-hosted, 10+ LLM providers. Maintained by zijinz456 on GitHub, where it has earned 70 stars from the community.

It's actively developed around ai, ai-tutor, education, and is a solid reference for anyone building with these tools.