Best Open Source approximate nearest neighbor search Libraries

A curated list of the most popular GitHub repositories tagged with approximate nearest neighbor search. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1pgvector/pgvector

Open-source vector similarity search for Postgres

19,894C

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#2spotify/annoy

Approximate Nearest Neighbors in C++/Python optimized for memory usage and loading/saving to disk

14,159C++

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#3lancedb/lancedb

Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

9,029HTML

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#4postgresml/postgresml

Postgres with GPUs for ML/AI apps.

6,703Rust

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