18.6
Chroma is open-source data infrastructure for AI that stores embeddings and metadata and supports search and retrieval across text, images, and other modalities.
Free planOpen sourceAndroidiOSWeb
Best Vector Databases in 2026
Vector databases support applications that store and retrieve vector data. Compare deployment options, index types, and maximum dimensions to understand the technical details listed for each product. Hybrid search, sparse vectors, and metadata filtering offer further retrieval capabilities to weigh against your workload, while SDK languages help you consider integration needs. Free-plan availability and paid-from…
28.4
Vespa is an AI search platform for online, data-driven applications, combining retrieval, ranking, machine-learning inference, and real-time serving.
Open sourceWebAPILinux
37.8
Pinecone is a fully managed vector database for AI workloads, available through web and API access.
Free planWebAPILinux
- 4
Weaviate
Weaviate is an open-source AI vector database for storing, indexing, and searching high-dimensional vectors.
Free planWebAPILinuxSelf-hosted7.0$45 usage-based - 5
Qdrant
Qdrant is a vector similarity search engine and API for storing, searching, and managing vectors alongside payload data.
Free planWebAPILinuxmacOS6.9Free plan - 6
Elasticsearch
Elasticsearch is an open-source distributed search and analytics engine for applications involving speed, scale and AI.
WebAPILinuxSelf-hosted6.7From $99 a month - 7
EmergentDB
EmergentDB is an open-source, self-hosted vector database licensed under AGPL-3.0, with managed cloud also listed.
Free planWebAPILinuxSelf-hosted6.7From $29 a month - 8
Upstash Vector
Upstash Vector is a serverless cloud vector database for search in systems such as NLP, retrieval-augmented generation, recommendations, image…
Free planWebAPI6.7$0.40 usage-based - 9
Zvec
Zvec is an open-source vector database that runs inside an application, so indexing and querying vectors does not require a separate server or external infrastructure.
Free planAndroidiOSAPILinux6.7Free plan - 10
Epsilla
Epsilla is an Agent-as-a-Service platform for creating and deploying vertical AI agents.
Free planWebAPISelf-hosted6.6From $29 a month - 11
Vearch
Vearch is a free, open-source distributed vector database for similarity search in AI applications.
Free planAPILinuxmacOSSelf-hosted6.4Free plan - 12
Zilliz Cloud
Zilliz Cloud is a managed Milvus service for deploying and scaling vector search applications.
Free planWebAPI6.4Free plan - 13
Milvus
Milvus is a free, open-source vector database for GenAI applications, developed by Zilliz.
Free planAPILinuxSelf-hosted6.3Free plan - 14
Tencent Cloud VectorDB
Tencent Cloud VectorDB is a cloud-managed distributed database for storing, indexing, retrieving, and managing multidimensional embedding vectors.
WebAPILinux6.3From $584 a month - 15
Cloudflare Vectorize
Cloudflare Vectorize is a cloud-hosted vector database for building AI-powered applications with Cloudflare Workers.
Free planWebAPI6.2Free plan - 16
KDB.AI
KDB.AI is a vector database and search engine for building AI applications with real-time data.
Free planWebAPISelf-hosted6.2Free plan - 17
ZeusDB Vector Database
ZeusDB Vector Database is a vector database for AI workloads such as semantic search, retrieval-augmented generation, and recommendations.
Free planAPILinuxmacOSSelf-hosted6.2Free plan - 18
LanceDB
LanceDB is an AI-native multimodal lakehouse for developing training datasets.
Free planAPILinuxSelf-hosted6.1Free plan - 19
turbopuffer
turbopuffer is an object-storage-native database for vector and full-text search, available through an API, self-hosted deployment, and web access.
WebAPISelf-hosted6.1From $16 a month - 20
Vald
Vald is a free, open-source engine for distributed approximate nearest-neighbor search across dense vectors.
Free planAPILinuxSelf-hosted6.0Free plan - 21
ManyVector
ManyVector is a vector database built on object storage, with vector, full-text, and hybrid search for uses such as RAG pipelines, semantic search,…
Free planAPISelf-hosted5.9Free plan - 22
Marqo
Marqo is a cloud platform for enterprise ecommerce product discovery, combining search, browsing, merchandising, recommendations, category pages, and…
WebAPI5.9 - 23
Vertex AI Vector Search
Vertex AI Vector Search is a vector search engine for search, recommendations, and generative AI applications.
WebAPI5.8 - 24
Infinity
Infinity is an open-source database for LLM applications, designed for retrieval-augmented generation and hybrid search.
APILinuxmacOSSelf-hosted5.7 - 25
Actian VectorAI DB
LinuxmacOSWindows4.9