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Best AI Tools for Vector search and embeddings (16 options)
16 tools for vector search and embeddings in the directory. Databases and libraries for embeddings, similarity search and retrieval.
How to read this page. We do not rank tools or publish scores. This page lists every Vector Databases tool in the directory with its official link and pricing model so you can shortlist, then try the ones that fit. Pricing labels come from each vendor's pricing page when we could confirm them; "See site" means we could not.
At a glance
- 16 tools listed; 2 free to use, 5 with a free tier, 0 paid, 9 where pricing is not confirmed here.
- With a free plan or tier: Chroma, FAISS, pgvector, Redis, Supabase, Weaviate, Zilliz.
What to look for
Consider hosted versus self-hosted, the index types offered, filtering features and how pricing scales with data size.
All 16 tools
| Tool | What it does | Pricing | Link |
|---|---|---|---|
| Chroma | Open-source search and embeddings database for AI applications. | Freemium | Official site |
| Elasticsearch | Search and analytics engine that supports vector and hybrid search. | See site | Official site |
| FAISS | Meta's open-source library for efficient similarity search over dense vectors. | Free | Official site |
| LanceDB | Open-source multimodal vector database built on the Lance format. | See site | Official site |
| Marqo | Vector search platform that handles embedding generation and retrieval. | See site | Official site |
| Milvus | Open-source vector database built for scalable similarity search. | See site | Official site |
| MongoDB Atlas Vector Search | Vector search built into MongoDB Atlas. | See site | Official site |
| pgvector | Open-source vector similarity search extension for PostgreSQL. | Free | Official site |
| Pinecone | Managed vector database for search and retrieval applications. | See site | Official site |
| Qdrant | Open-source vector database and search engine with a managed cloud. | See site | Official site |
| Redis | In-memory data platform with vector search and semantic caching for AI apps. | Freemium | Official site |
| Supabase | Open-source Postgres development platform with vector and AI toolkit. | Freemium | Official site |
| turbopuffer | Serverless vector and full-text search engine built on object storage. | See site | Official site |
| Vespa | Open-source engine for search, recommendation and vector retrieval at scale. | See site | Official site |
| Weaviate | Open-source vector database with hybrid search and a managed cloud. | Freemium | Official site |
| Zilliz | Managed Milvus vector database cloud from its creators. | Freemium | Official site |