Langflow
Visual drag-and-drop builder for AI agents and RAG apps
Launched 21 months agolangflow.org
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About Langflow
Langflow is an open source tool where developers drag components onto a canvas to build AI agents, RAG pipelines and multi-agent applications. It began as a graphical interface for LangChain and still exports to LangChain code. Each flow can be customized in Python and deployed with one click, and the built-in API server turns every agent into an endpoint that other applications can call. It supports all major language models and vector stores, and has over 146,000 GitHub stars. It is free to use, with the option to build MCP servers as well.
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