Best Vector Databases in 2026

Vector database built for scalable similarity search Open-source, highly scalable, and blazing fast.

Key Milvus features:

High Performance Scalability Flexible Deployment Community and Support

Open Source free

Switch your monitor’s video input and seamlessly transfer text and files! A Linux/macOS/Windows Desktop Application.

Key DisplaySwitcher features:

Monitor Input Switching Monitor Switching Through Another Computer File Transfers Text Transfers

Try for free paid Free Trial $5.95 / Monthly Sponsored

Search through billions of items for similar matches to any object, in milliseconds. It’s the next generation of search, an API call away.

Key Pinecone features:

Scalability Ease of Use Real-time Querying Managed Service

Open Source

Qdrant is a high-performance, massive-scale Vector Database for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/ .

Key Qdrant features:

Advanced Filtering On-disc Storage Scalar Quantization Product Quantization

Open Source freemium

Kx Systems has a high-performance vector database, kdb+, with a built-in programming language, q, that sets the standard for time-series analytics.

Key KX features:

High Performance q Programming Language Time-Series Data Handling Scalability

Welcome to Weaviate.

Key Weaviate features:

Semantic Search Scalability Graph-Based Integration with AI/ML Models

Relational DB that uses Datalog and focuses on graphs.

Key Cozo Database features:

Powerful Query Language Graph and Relational Data Efficient Data Storage Open Source

Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.

Key Algolia features:

Speed Ease of Integration Customizable Relevance Scalability

Open Source

Ultra relevant, instant, and typo-tolerant full-text search API.

Key Meilisearch features:

Speed Relevance Ease of Use Open Source

Open Source

AI search engine for apps: semantic text and image search in one API.

Key Vecstore features:

Semantic Text Search Image Search OCR Search Autocomplete

freemium $11 / Monthly (5,000 Credits)

Heroic time series database.

Splutter AI | Create AI Chatbot for Websites, SMS, & Apps - Featured Include Low Latency Stack, Hotswappable Models, Hotswappable Databases, Hotswappable Tools, HostedGPT, & More!

Key Splutter AI features:

Extremely Customizable Chatbot Layout Hotswappable Models Extensive Database Management Hotswappable Databases

freemium $39.99 / Monthly (2000 Query Tokens, Up to 3 Chatbots, Up to 5 Databases)

turbopuffer is a vector database built on top of object storage, which means 10x-100x cheaper, usage-based pricing, and massive scalability.

Key turbopuffer features:

Ease of Use Efficiency Customization Integration

Voyage AI provides cutting-edge embedding models and rerankers for search and retrieval.

Key Voyage AI features:

High-quality embeddings Domain-specific models Easy API integration Competitive pricing

Open Source