Category
Vector Databases
The memory layer for AI apps.
11 tools·10 with free plan·7 with free trial
Read the editor's roundup →Databases that store and search embeddings for RAG, semantic search, and AI memory.
11 tools reviewed10 with a free plan7 with a free trial11 with an API9 self-hostable1 paid-only
Where to start
Not enough community votes to rank this category yet — this is a shortlist, not an order of merit.
Multimodal AI data lake and vector store for RAG and training
Best as a database purpose-built for AI, storing tensors, embeddings, and multimodal data with version control and fast streaming into training loops. The caveat is it is a specialized data layer, so expect a learning curve and less value if you only need a plain vector store.
freemium·$0
Open-source embedding database for AI apps
Chroma is the friendliest on-ramp to retrieval: for prototyping RAG or running something small, its embedded mode is genuinely delightful and free. The serverless Chroma Cloud with pure usage billing is compelling for bursty or small workloads that would otherwise pay for idle clusters. The honest caveat is that Chroma is younger and lighter on advanced production features (complex filtering, mature multi-tenancy) than Qdrant or Milvus, so very large or demanding deployments should evaluate carefully. Great for getting started; validate at scale.
freemium·Free open source; Chroma Cloud usage-based ($5 starter credits)
Open-source embedded vector database for multimodal AI and RAG
An appealing embedded, open-source vector database built on the Lance columnar format, giving you fast local similarity search with no separate server to run. It is younger than rivals like pgvector or Pinecone, so expect a smaller ecosystem and evolving tooling at very large scale.
freemium·Usage-based
All Vector Databases
Serverless vector and full-text search built on object storage
#vector-database#serverless#object-storage#full-text-search 2 views
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Frequently asked questions
- What's the best vector databases tool?
- Activeloop Deep Lake currently leads in community votes. Best as a database purpose-built for AI, storing tensors, embeddings, and multimodal data with version control and fast streaming into training loops. The caveat is it is a specialized data layer, so expect a learning curve and less value if you only need a plain vector store.
- Are there free options?
- 10 tools in this category offer a free plan. Another 7 have a free trial.
- How do you rank these tools?
- Tools are ranked by a combination of community upvotes, editorial review, and feature breadth. Our editors review pricing and capabilities quarterly.
- Can I suggest a tool we're missing?
- Yes — submit it here. Our team reviews submissions weekly.