Basic Memory is a knowledge management system that leverages natural conversations with LLMs to build persistent knowledge, saving it to local Markdown files. It solves the problem of short-lived LLM interactions and difficulty retaining knowledge. Its advantages include local priority, bidirectional read/write, simple structure, knowledge graph formation, compatibility with existing editors, and lightweight infrastructure. It aims to help users build a personal knowledge base and uses the AGPL-3.0 license with no explicitly stated price.