flowise - low-code llm app builder
About Flowise
Open-source drag-and-drop tool for building LLM flows and AI agents using LangChain and LlamaIndex nodes. Connect models, memory, tools, and data sources visually, then expose as an API or embed as a chat widget.
Key Capabilities
100+ pre-built LangChain and LlamaIndex nodes
Build chatbots, RAG apps, and agents with drag-and-drop
Expose any flow as a REST API in one click
Embeddable chat widget for any website
Self-host with Docker or deploy to cloud instantly
32,000+ GitHub stars, active open-source community
Standout Features
Visual Node Editor
Connect LangChain and LlamaIndex nodes visually; no Python required
API Export
One-click REST API endpoint for any flow, integrate into any stack
Chat Widget
Embed a production-ready AI chat widget on any website with one script tag
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