Best Vector Databases on GitHub (2026)

This list contains the top 12 vector databases on GitHub, ranked by the RepoRadar scoring engine across five quality dimensions. The top-ranked repo is redis/redis with 75k stars. Projects span written in C, Go, Rust, C++. Data last updated 2026-06-19.

Updated · 12 repos · Data: GitHub public API

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1
redis
redis
redis
93
Elite

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 q…

75k 24,675 2,852 C updated yesterday
cachecachingdatabasedistributed-systems
2
milvus-io
milvus-io
milvus
90
Elite

Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search

44.8k 4,075 899 Go updated 17 hours ago
annscloud-nativediskanndistributed
3
pingcap
pingcap
tidb
90
Elite

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 neighb…

40.2k 6,197 6,336 Go updated 15 hours ago
agentagent-contextagent-memoryagentic
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qdrant
qdrant
qdrant
89
Strong

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/

32.4k 2,394 583 Rust updated 18 hours ago
ai-searchai-search-engineembeddings-similarityhnsw
weaviate
weaviate
weaviate
87
Strong

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 a…

16.3k 1,312 542 Go updated 11 hours ago
approximate-nearest-neighbor-searchgenerative-searchgrpchnsw
oceanbase
oceanbase
oceanbase
86
Strong

The Fastest Distributed Database for Transactional, Analytical, and AI Workloads.

10.2k 1,901 529 C++ updated yesterday
analyticscloud-nativedatabasedistributed-database
alibaba
alibaba
zvec
85
Strong

A lightweight, lightning-fast, in-process vector database

11.2k 649 59 C++ updated 2 days ago
agent-skillsdbembeddedfaiss
infiniflow
infiniflow
infinity
84
Strong

The AI-native database built for LLM applications, providing incredibly fast hybrid search of dense vector, sparse vector, tensor (multi-vector), and full-text.

4.6k 426 62 C++ updated yesterday
ai-nativeapproximate-nearest-neighbor-searchbm25cpp20
HelixDB
HelixDB
helix-db
83
Strong

HelixDB is an OLTP graph-vector database built in Rust.

5.4k 301 10 Rust updated 2 days ago
aiclidatabasedatabases
alibaba
alibaba
AliSQL
81
Strong

AliSQL is a MySQL branch originated from Alibaba Group. Fetch document from Release Notes at bottom.

5.8k 893 10 C++ updated 1 month ago
alisqldatabaseduckdbmysql
objectbox
objectbox
objectbox-java
80
Strong

Database for Android and JVM - first and fast, lightweight on-device vector database

4.6k 306 148 Java updated 1 month ago
androiddatabaseedgeembedded
QuivrHQ
QuivrHQ
quivr
67
Solid

Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Ll…

39.2k 3,724 23 Python updated 11 months ago
aiapichatbotchatgpt

Frequently Asked Questions

What is the best vector databases on GitHub?

Based on the RepoRadar scoring engine, redis/redis is currently the top-ranked option with 75k stars and a score of 93/100.

How are vector databases repositories ranked?

Repositories are ranked by the RepoRadar score — a composite of five dimensions: Popularity (35%), Freshness (25%), Maintenance (20%), Community (10%), and Completeness (10%). Scores range from 0–100.

When was this list last updated?

This list was last updated on 2026-06-19. Data is sourced directly from GitHub's public API. No cached or fabricated repositories are used.

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