Flowise is an open-source low-code tool for building LangChain-based applications visually. Drag and drop components to create chatbots, RAG pipelines, AI agents and document Q&A systems without writing backend code. Self-host for free.
Best for
Developers who want to build and deploy LLM apps and RAG pipelines without heavy coding.
Pros
- Completely free and open-source, with no forced cloud subscription
- Visual drag-and-drop LangChain building lowers the barrier to building RAG pipelines and agents
Cons
- Self-hosting requires technical setup and ongoing maintenance
- Smaller community and less polish than commercial no-code AI platforms
Tags
open-sourcellmraglangchainchatbotvisualself-hosted
Frequently asked questions
Do I need to know LangChain to use Flowise?
Flowise is built on LangChain concepts under the hood, but its visual interface means you don't need to write LangChain code directly — some familiarity with the underlying concepts still helps for advanced use cases.