Vector Databases
Vector stores and similarity search — alternatives to Pinecone and Weaviate Cloud.
39 projects
See methodology for ranking rules; order uses public GitHub metrics within this scenario.
| Rank | Project | Stars | Forks | Updated | License |
|---|---|---|---|---|---|
| 21 |
examples
Jupyter Notebooks to help you get hands-on with Pinecone vector databases |
3.0K | 1.1K | 08/29/26 | MIT |
| 22 |
seekdb
The AI-Native Search Database. Best for agent storage, it unifies vector, text, structured, and semi-structured data into a single engine. This all-in-one database makes agents smarter, easier to run, and more stable. |
2.9K | 322 | 08/29/26 | Apache-2.0 |
| 23 |
matrixone
AI-native HTAP database with Git-for-Data and built-in vector search, serving as the data and memory backbone for intelligent agents and applications. |
1.9K | 309 | 08/29/26 | Apache-2.0 |
| 24 |
pgvectorscale
Postgres extension for vector search (DiskANN), complements pgvector for performance and scale. Postgres OSS licensed. |
3.1K | 154 | 08/13/26 | Other |
| 25 |
pymilvus
Python SDK for Milvus Vector Database |
1.4K | 457 | 08/19/26 | Apache-2.0 |
| 26 |
SeekStorm
SeekStorm: vector & lexical search - in-process library & multi-tenancy server, in Rust. |
1.9K | 68 | 08/23/26 | Apache-2.0 |
| 27 |
qdrant-client
Python client for Qdrant vector search engine |
1.4K | 279 | 08/25/26 | Apache-2.0 |
| 28 |
arcadedb
ArcadeDB Multi-Model Database, one DBMS that supports SQL, Cypher, Gremlin, HTTP/JSON, MongoDB and Redis. ArcadeDB is a conceptual fork of OrientDB, the first Multi-Model DBMS. ArcadeDB supports Vector Embeddings. |
1.1K | 136 | 08/29/26 | Apache-2.0 |
| 29 |
vearch
Distributed vector search for AI-native applications |
2.3K | 366 | 07/27/26 | Apache-2.0 |
| 30 |
mcp-server-qdrant
An official Qdrant Model Context Protocol (MCP) server implementation |
1.5K | 300 | 08/14/26 | Apache-2.0 |
| 31 |
VectorChord
Scalable, fast, and disk-friendly vector search in Postgres, the successor of pgvecto.rs. |
1.8K | 73 | 08/06/26 | Other |
| 32 |
NGT
Nearest Neighbor Search with Neighborhood Graph and Tree for High-dimensional Data |
1.4K | 130 | 07/27/26 | Apache-2.0 |
| 33 |
endee
Endee.io – A high-performance vector database, designed to handle up to 1B vectors on a single node, delivering significant performance gains through optimized indexing and execution. Also available in cloud https://endee.io/ |
1.3K | 1.7K | 07/29/26 | AGPL-3.0 |
| 34 |
dingo
A multi-modal vector database that supports upserts and vector queries using unified SQL (MySQL-Compatible) on structured and unstructured data, while meeting the requirements of high concurrency and ultra-low latency. |
1.7K | 265 | 07/10/26 | Apache-2.0 |
| 35 |
attu
The Best GUI for Milvus |
3.1K | 223 | 06/11/26 | Other |
| 36 |
pgvector-python
pgvector support for Python |
1.5K | 93 | 07/06/26 | MIT |
| 37 |
chromem-go
Embeddable vector database for Go with Chroma-like interface and zero third-party dependencies. In-memory with optional persistence. |
1.1K | 75 | 05/17/26 | MPL-2.0 |
| 38 |
hora
🚀 efficient approximate nearest neighbor search algorithm collections library written in Rust 🦀 . |
2.7K | 77 | 02/17/26 | Apache-2.0 |
| 39 |
pgvecto.rs
Scalable, Low-latency and Hybrid-enabled Vector Search in Postgres. Revolutionize Vector Search, not Database. |
2.2K | 86 | 02/26/25 | Apache-2.0 |