Langflow
Visual builder for AI agents and RAG pipelines — LangChain-powered.
MIT-licensed alternative to Flowise with Python code nodes, multi-agent orchestration, and vector store integration. pip install or Docker.
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FastGPT
AI knowledge base platform — visual workflows and built-in RAG.
Apache-2.0 alternative to Dify with drag-and-drop workflow builder, document ingestion, and one-click API deployment. MongoDB + PostgreSQL backend.
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