Langflow

Langflow is an open-source, low-code platform for building and visualizing LLM workflows. Built on top of LangChain, it allows developers to chain prompts, tools, vector databases and memory components through a drag-and-drop interface, while still supporting custom Python code for advanced logic. It's particularly useful for prototyping agentic applications without writing full back-end code. However, Langflow is still relatively new and has some rough edges for production use. Our usual caution around low-code platforms applies here. That said, we like that Langflow's workflows can be defined and versioned as code, which can mitigate some of the drawbacks of low-code platforms.