Flowise

Flowise is an open source platform for building AI agents and LLM workflows visually. Instead of writing every step in code, you assemble agents, retrieval, and orchestration logic by dragging and connecting nodes on a canvas, then run them as live applications.

The builder covers single agents, multi-agent systems, RAG over your own data, and chatbots, with third-party integrations available as drop-in nodes. Each flow can be exposed through an API for embedding into other apps, and instances are tuned through environment variables.

Install it with a single npm command or run the official Docker image, then self-host on AWS, Azure, GCP, Digital Ocean, Railway, Render, and other providers. A managed Flowise Cloud is available, and the source is released under the Apache License 2.0.