poloclub/mememo

Implements the HNSW approximate nearest neighbor search algorithm optimized for browsers using IndexedDB and Web Workers, enabling efficient similarity search across millions of high-dimensional vectors entirely client-side. Supports both browser and Node.js environments with a simple API for bulk insertion and k-nearest neighbor queries. Designed to enable privacy-preserving RAG applications and interactive prototyping without server dependencies.

158 stars and 22 monthly downloads. No commits in the last 6 months. Available on npm.