Best Vector Databases Tools

Explore leading tools in the Vector Databases category, including open-source options and SaaS products. Compare features, use cases, and find the best fit for your workflow.

10+ open-source projects · 3 SaaS products

Top open-source Vector Databases

These projects are active, self-hostable choices for knowledge management teams evaluating alternatives to SaaS tools.

View all 10+ open-source options
Milvus logo

Milvus

High-performance vector database built for AI at scale

Stars
41,177
License
Apache-2.0
Last commit
3 days ago
GoActive
Faiss logo

Faiss

High-performance library for similarity search on dense vectors

Stars
38,254
License
MIT
Last commit
4 days ago
C++Active
Qdrant logo

Qdrant

Fast, scalable vector search engine for AI-driven applications

Stars
27,422
License
Apache-2.0
Last commit
3 days ago
RustActive
Chroma logo

Chroma

Embedding database for building LLM apps with memory

Stars
24,687
License
Apache-2.0
Last commit
3 days ago
RustActive
pgvector logo

pgvector

Vector similarity search integrated directly into PostgreSQL

Stars
18,611
License
Unknown
Last commit
3 days ago
CActive
Weaviate logo

Weaviate

Scalable vector database for semantic search and AI applications

Stars
15,128
License
BSD-3-Clause
Last commit
3 days ago
GoActive
Most starred project
41,177★

High-performance vector database built for AI at scale

Recently updated
3 days ago

Weaviate delivers fast, cloud‑native vector search with hybrid filtering, built‑in RAG, and flexible vectorization, supporting production‑grade scaling, multi‑tenancy, and role‑based access.

Dominant language
Rust • 3 projects

Expect a strong Rust presence among maintained projects.

Popular SaaS Platforms to Replace

Understand the commercial incumbents teams migrate from and how many open-source alternatives exist for each product.

Pinecone logo

Pinecone

Managed vector database for AI applications

Vector Databases
Alternatives tracked
13 alternatives
Qdrant logo

Qdrant

Open-source vector database

Vector Databases
Alternatives tracked
13 alternatives
ZIL

Zilliz

Managed vector database service for AI applications

Vector Databases
Alternatives tracked
13 alternatives
Most compared product
10+ open-source alternatives

Pinecone is a fully managed vector database service designed for similarity search at scale, featuring serverless architecture, real-time indexing, and enterprise security for AI applications.

Leading hosted platforms

Frequently replaced when teams want private deployments and lower TCO.

Explore related categories

Browse neighbouring categories in Data Platforms to widen your evaluation.