Top AI Repos tracks AI repositories on GitHub and answers two different questions about each one: is it moving right now, and would you bet a product on it.
Storage and retrieval for embeddings: vector indexes, hybrid search and ANN libraries.
Signals: vector-database, vector-search, vector-store, similarity-search, approximate-nearest-neighbor, ann-search, faiss, hnsw
191 results
Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/
A modern replacement for Redis and Memcached
HelixDB is an OLTP graph database with native vector and full-text search built in Rust on Object Storage.
A vector index built on TurboQuant, written in Rust with Python bindings
Open-source vector similarity search for Postgres
AI-powered cross-platform e-book reader with semantic search, RAG chat, local vector store, notes, TTS, and WebDAV sync.
AI-powered GitHub stars manager with semantic search, auto-categorization, and release tracking
Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search
For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.
A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.
Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.
A lightweight, lightning-fast, in-process vector database
MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.
[MLsys2026 Best Paper]: https://arxiv.org/abs/2506.08276. RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.
The AI search platform
Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database.
OceanBase is the unified distributed database for the AI era — open-source, multi-model, one engine for your most demanding workloads.
OpenCode plugin that gives coding agents persistent memory using local vector database
Python client for Qdrant vector search engine
Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph traversal, and writes. Using Neo4j Bolt/Cypher and qdrant's gRPC means you can switch with no changes while adding intelligent features like schemas, managed embeddings, reranking+llm, GPU accel, Auto-TLP, Policy-based Memory Decay, and MCP server.
Your entire engineering context, deeply understood
The Best GUI for Milvus
Distributed, transactional document database backed by FoundationDB.
24,535 repositories in the index in total.
