Quivr

Quivr is an open-source, self-hostable second brain tool designed to help users store, organize, and retrieve knowledge effortlessly using AI. It supports diverse content formats—including text, PDFs, images, and audio—and integrates with leading LLMs like GPT-4 and Llama for intelligent search, summarization, and question-answering. Users can choose to self-host for full data privacy or use cloud-based deployments, making it flexible for individuals, teams, and businesses. With notebook organization, tagging, and embedding-based searches, Quivr centralizes notes, research, and ideas while delivering AI-driven insights, ideal for those prioritizing data control and smart knowledge management.