// about Flowise
Flowise is an open-source, low-code tool for visually building LangChain and LlamaIndex-based AI applications. Users drag and drop nodes — for models, vector stores, memory, tools, and APIs — to construct chatbots, RAG pipelines, and AI agents without writing backend code. Self-hostable and highly extensible, it is popular with developers who want the power of LangChain without the complexity of building every integration from scratch. The Flowise marketplace provides pre-built templates for common use cases.