Open Source Vector Databases
A curated collection of the best open source databases optimized for storing and searching vector embeddings..
High-performance vector database for GenAI applications
Stars
46,462Last commit
11 hours agoLicense
Apache-2.0
Open-source vector database optimized for similarity search, scaling to billions of vectors with minimal performance loss
Open Source Alternative to:
Fast, scalable vector database for AI applications
Stars
35,217Last commit
9 hours agoLicense
Apache-2.0
Qdrant is an open-source vector database that provides high-performance similarity search for AI and machine learning applications.
Open Source Alternative to:
Open-source vector database for AI search and retrieval
Stars
29,568Last commit
14 hours agoLicense
Apache-2.0
Open-source vector database designed for AI applications. Store, search, and retrieve embeddings with semantic similarity matching and metadata filtering.
Open Source Alternative to:
AI-native vector database for intuitive applications
Stars
16,908Last commit
18 hours agoLicense
BSD-3-Clause
Open-source vector database designed for building powerful, production-ready AI applications with hybrid search capabilities and flexible deployment options.
Open Source Alternative to:
Graph database built for GraphRAG and multi-tenant AI apps
Stars
Stars growing quickly over the last 30 days10,499Last commit
1 day agoLicense
SSPL-1.0
Graph database using sparse matrix representation and linear algebra to deliver ultra-low latency Cypher queries, native multi-tenancy, and built-in GraphRAG support for AI applications.
Open Source Alternative to:
Full-text & vector search at the edge.
Stars
10,584Last commit
6 days agoLicense
Unknown
Blend full-text and semantic search for unlimited queries across 300 global locations. Get precise answers and matches at a flat rate, no matter your search volume.
Open Source Alternative to:
The tensor database for AI data
Stars
9,258Last commit
5 months agoLicense
Apache-2.0
Deep Lake is an open-source database for storing, querying and managing complex AI data like images, audio, and embeddings.
Open Source Alternative to:
Unify vector search and graph traversals in one database
Stars
6,231Last commit
2 days agoLicense
Apache-2.0
Rust-built native graph-vector database combining vector similarity search and graph traversals. 10x faster development with unified architecture, sub-1ms queries.
Open Source Alternative to:
Sent – A unified API for sending messages across SMS, RCS, and apps like WhatsApp.
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