Flowise is an open-source, low-code platform for building AI agents and workflows through a visual drag-and-drop interface. With over 50,000 GitHub stars, it is one of the most popular AI agent builder tools in the open-source ecosystem. The platform enables users to create everything from simple chatbots to complex multi-agent systems without writing code. Built as a mono repository with a React frontend and Node.js backend, Flowise supports modular building blocks including single-agent systems with tool calling and knowledge retrieval (RAG), multi-agent systems with workflow orchestration, and third-party node integrations for extending functionality. The AgentFlow V2 update introduced a significant architectural evolution, shifting from external framework reliance toward explicit workflow orchestration using granular, specialized standalone nodes. This allows for more predictable and debuggable agent behavior. Flowise supports self-hosting across multiple cloud platforms and Docker, making it accessible to both individual developers and enterprise teams. The platform integrates with 100+ LLM providers and offers built-in RAG pipelines for document-based knowledge retrieval. In August 2025, Workday acquired Flowise, bringing enterprise backing to the project while maintaining its open-source Apache 2.0 license. The acquisition has accelerated development, particularly around enterprise features and HR/finance automation use cases.