Weaviate

Vector DB with built-in modules
Vector databaseVector databaseBSD-3-ClauseSelf-hostedGoIntermediate
🛡 Published security advisories
A high count usually means the project is heavily examined. A low count usually means it is little examined — not that it is safe.
No public activity signals for this tool — it has no open repository we can measure.
Olud Pulse ⓘ ★★★★★★★★★★ /100 signals tracked
🐳 Docker pulls 📦 PyPI downloads / month 📦 npm downloads / month 🚀 Latest release ·
Visit website →View on GitHub

What is Weaviate?

Weaviate is an open-source vector database with built-in vectorization modules, hybrid search and a GraphQL API for AI-native applications.

Why people choose Weaviate

Weaviate at a glance

CategoryVector database
TypeVector database
LicenseBSD-3-Clause
Runs locallySelf-hosted
Built withGo
Skill levelIntermediate
Best forteams wanting hybrid search and built-in modules

Open-source alternatives to Weaviate

Other open-source vector database tools worth comparing:

QdrantFast Rust-based vector searchMilvusBillion-scale vector databaseChromaThe simplest embedding DB for prototypingpgvectorVector search inside PostgreSQLLanceDBServerless vector DB for AIFAISSThe reference library for similarity searchVespaBig-scale hybrid search and ranking platformpgvectorscaleMake pgvector fast at scaleMarqoVector search with embedding built inUSearchTiny, extremely fast vector index

Weaviate head-to-head

Weaviate vs QdrantWeaviate vs MilvusWeaviate vs ChromaWeaviate vs pgvectorWeaviate vs LanceDBWeaviate vs FAISSWeaviate vs VespaWeaviate vs pgvectorscaleWeaviate vs MarqoWeaviate vs USearch

FAQ

Is Weaviate free?

Weaviate is free and open-source (BSD-3-Clause license), so you can use, self-host and modify it at no cost.

Can I run Weaviate locally?

Yes. Weaviate is designed to run on your own machine or server, keeping your data private.

What is the best alternative to Weaviate?

Popular open-source alternatives include Qdrant, Milvus, Chroma. See the comparisons above to choose.

Explore more open-source AI

Browse the full directory of open-source AI tools, models and projects — updated daily.

Browse all tools →