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yichuan-w/LEANN

LEANN is an innovative vector database enabling fast, accurate, and 100% private RAG on personal devices with 97% storage savings.

Core Features

97% Storage Savings: Achieved through graph-based selective recomputation, avoiding storing all embeddings.

100% Privacy & On-device: Data never leaves your laptop, with zero cloud dependency.

RAG on Diverse Personal Data: Indexes and searches file system, emails, browser history, chat history, AI agent memory, and more.

Fast & Accurate Semantic Search: Provides intelligent retrieval without accuracy loss.

Portable Knowledge Base: Easily transfer your entire knowledge base between devices.

Detailed Introduction

LEANN is a groundbreaking vector database designed to democratize personal AI by transforming laptops into powerful RAG systems. It uniquely offers up to 97% storage savings compared to traditional solutions, without compromising accuracy, by employing graph-based selective recomputation. This enables users to index and semantically search millions of personal documents—from emails and browser history to chat logs and codebases—entirely on their device. Emphasizing complete privacy and zero cloud costs, LEANN provides a lightweight, portable, and fast solution for personal knowledge management and AI interaction.