Dify

★ 136.3k Python, TypeScript
Dify architecture diagram

TL;DR

The most popular open-source platform for building AI apps visually: drag-and-drop workflows, built-in RAG, plugin marketplace, multi-tenant everything. Its graph engine (graphon) was extracted into a standalone PyPI package, and the plugin daemon runs as a separate process for safety.

Key Finding: graphon engine, 7+ containers, 30+ vector DBs, plugin daemon

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