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 |
|---|---|---|---|---|---|
| 1 |
supabase
The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications. |
108.6K | 13.7K | 08/29/26 | Apache-2.0 |
| 2 |
tidb
TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling. |
40.5K | 6.2K | 08/29/26 | Apache-2.0 |
| 3 |
milvus
Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search |
45.9K | 4.2K | 08/28/26 | Apache-2.0 |
| 4 |
qdrant
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/ |
34.3K | 2.6K | 08/29/26 | Apache-2.0 |
| 5 |
chroma
Search infrastructure for AI |
29.2K | 2.5K | 08/29/26 | Apache-2.0 |
| 6 |
doris
Apache Doris is a real-time analytics and hybrid search database for AI agents. |
15.8K | 3.9K | 08/29/26 | Apache-2.0 |
| 7 |
weaviate
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. |
16.8K | 1.4K | 08/29/26 | BSD-3-Clause |
| 8 |
turbovec
A vector index built on TurboQuant, written in Rust with Python bindings |
16.5K | 1.4K | 08/21/26 | MIT |
| 9 |
zvec
A lightweight, lightning-fast, in-process vector database |
15.5K | 984 | 08/28/26 | Apache-2.0 |
| 10 |
oceanbase
OceanBase is the unified distributed database for the AI era — open-source, multi-model, one engine for your most demanding workloads. |
10.3K | 1.9K | 08/29/26 | Apache-2.0 |
| 11 |
lancedb
Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less. |
11.3K | 1.0K | 08/29/26 | Apache-2.0 |
| 12 |
LEANN
[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. |
12.8K | 1.2K | 08/25/26 | MIT |
| 13 |
paradedb
One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension. |
9.2K | 444 | 08/29/26 | AGPL-3.0 |
| 14 |
orama
🌌 A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text, vector, and hybrid search in less than 2kb. |
10.5K | 400 | 08/04/26 | Other |
| 15 |
vespa
The AI search platform |
7.1K | 737 | 08/28/26 | Apache-2.0 |
| 16 |
RediSearch
A query and indexing engine for Redis, providing secondary indexing, full-text search, vector similarity search and aggregations. |
6.2K | 595 | 08/29/26 | Other |
| 17 |
supabase-js
An isomorphic Javascript client for Supabase. Query your Supabase database, subscribe to realtime events, upload and download files, browse typescript examples, invoke postgres functions via rpc, invoke supabase edge functions, query pgvector. |
4.5K | 723 | 08/28/26 | MIT |
| 18 |
helix-db
HelixDB is an OLTP graph-vector database built in Rust on Object Storage. |
5.9K | 343 | 08/29/26 | Apache-2.0 |
| 19 |
infinity
The AI-native database built for LLM applications, providing incredibly fast hybrid search of dense vector, sparse vector, tensor (multi-vector), and full-text. |
4.7K | 441 | 08/27/26 | Apache-2.0 |
| 20 |
RuVector
RuVector is a High Performance, Real-Time, Self-Learning Ai, Vector GNN, Memory DB built in Rust. |
4.5K | 591 | 08/29/26 | MIT |