LEANN
LEANN is an innovative vector database designed to democratize personal AI by enabling Retrieval-Augmented Generation on all local data. It transforms laptops into powerful, private RAG systems capable of indexing and searching millions of documents while achieving 97% storage savings compared to traditional solutions without sacrificing accuracy. LEANN achieves this efficiency through graph-based selective recomputation and high-degree preserving pruning, computing embeddings on-demand rather than storing them permanently. The software supports comprehensive data integration, allowing users to semantically search file systems, emails, browser history, and chat logs from platforms like WeChat and iMessage. It also indexes AI conversation archives from ChatGPT and Claude, supports live data from Slack and Twitter, and handles codebases for streamlined development workflows. A key feature is its native Model Context Protocol integration for streaming live data. LEANN operates entirely on personal devices with z