An open-source conversational AI stack for deep learning end-to-end dialog systems and chatbots. Includes DeepPavlov Library, one of the top NLP libraries; DeepPavlov DFF — a neurosymbolic engine for building simple chatbots and skills for multiskill AI assistants; DeepPavlov Agent — a conversational AI orchestrator; DeepPavlov Dream — a platform for building multiskill AI assistants. Also includes DeepPavlov DF designer — a visual conversational AI editor for building neurosymbolic AI skills using DeepPavlov DFF.