Qdrant

Free

<50M vectors

FreeFree tier

Type

Open Source

Visit Website GitHub (38 stars)

About Qdrant

Qdrant is a high-performance, massive-scale vector similarity search engine and vector database written in Rust. It provides a production-ready service with a convenient API to store, search, and manage points—vectors with an additional payload. Qdrant is tailored for extended filtering support, making it useful for neural-network or semantic-based matching, faceted search, and other applications. It is designed to be fast and reliable even under high load. Qdrant is available as a self-hosted open-source solution, a cloud service (Qdrant Cloud with a free tier), and as Qdrant Edge for resource-constrained environments. It offers official client libraries for Go, Rust, JavaScript/TypeScript, Python, .NET/C#, and Java, plus community libraries like PHP.

Key Features

Vector similarity search and storage with payload support

Extended filtering capabilities for faceted and semantic search

Written in Rust for high performance and reliability under load

Client-server architecture with official client libraries (Go, Rust, JS/TS, Python, .NET/C#, Java)

Qdrant Cloud with a free tier for managed hosting

Qdrant Edge for edge devices and offline/low-latency use cases

Ready-to-use agent skills for AI coding assistants

Pros & Cons

Pros

High performance and reliability under heavy load due to Rust implementation
Extended filtering support beyond basic vector search
Flexible deployment: self-hosted, cloud, or edge
Comprehensive client libraries for multiple programming languages
Open source with active community and benchmarks available

Cons

Requires self-hosting for on-premise deployment unless using managed cloud
Learning curve for configuring and scaling vector databases
Limited to vector-based search; not a general-purpose database

Best For

Semantic matching and neural-network-based searchFaceted search applicationsRecommendation systemsEmbedding-based retrieval for AI applicationsVector search for offline or resource-constrained environments (via Qdrant Edge)

FAQ

What is Qdrant?

Qdrant is a vector similarity search engine and vector database. It provides a production-ready service with an API to store, search, and manage vectors with additional payloads, and supports extended filtering for various search applications.

Is Qdrant free and open source?

Yes, Qdrant is open source and free to use. It is available on GitHub under the Apache 2.0 license.

Does Qdrant offer a cloud service?

Yes, Qdrant Cloud is a fully managed service that includes a free tier. It can be accessed at https://cloud.qdrant.io/

What programming languages are supported?

Qdrant has official client libraries for Go, Rust, JavaScript/TypeScript, Python, .NET/C#, and Java, plus community-contributed libraries such as PHP.