Azure Cosmos DB
Globally distributed, multi-model database service
A database for low latency and scalable applications anywhere in the world, with native support for NoSQL
Azure Cosmos DB was built from the ground up with global distribution and horizontal scale at its core. It offers turnkey global distribution across any number of Azure regions by transparently scaling and replicating your data wherever your users are. Elastically scale throughput and storage worldwide, and pay only for what you need. Azure Cosmos DB provides native support for NoSQL choices, offers multiple well-defined consistency models, guarantees single-digit-millisecond latencies at the 99th percentile, and guarantees high availability with multi-homing capabilities and low latencies anywhere in the world—all backed by industry-leading, comprehensive service level agreements (SLAs).
Turnkey global distribution
Easily build globally distributed applications without the hassle of complex, multiple-datacenter configurations. Designed as a globally distributed database system, Azure Cosmos DB automatically replicates your data to any number of regions of your choice for fast, responsive access. Azure Cosmos DB supports transparent multi-homing and guarantees 99.999% high availability.
Multi-model + multi-API
Limitless elastic scale around the globe
With Azure Cosmos DB, you pay only for the throughput and storage you need. Azure Cosmos DB allows you to independently and elastically scale storage and throughput at any time, anywhere across the globe, making it a perfect ally for your serverless applications.
Multiple, well-defined consistency choices
Azure Cosmos DB offers five well-defined consistency levels—strong, bounded staleness, consistent-prefix, session, and eventual—for an intuitive programming model with low latency and high availability for your planet-scale app.
Guaranteed low latency at 99th percentile
Serve read and write requests from the nearest region while simultaneously distributing data across the globe. With its latch-free and write-optimized database engine, Azure Cosmos DB guarantees less than 10-ms latencies on reads and less than 15-ms latencies on (indexed) writes at the 99th percentile.
Industry-leading, enterprise-grade SLAs
Rest assured your apps are running on a "battle-tested" database service built on world-class infrastructure. Azure Cosmos DB gives you enterprise-grade security and compliance, and is the first and only service to offer industry-leading comprehensive SLAs for 99.999% high availability, latency at the 99th percentile, guaranteed throughput, and consistency.
Customers using Azure Cosmos DB
What can you build with Azure Cosmos DB?
Learn about use cases below:
Globally distributed mission-critical applications
Guarantee access to users around the world with the high-availability and low-latency capabilities built into Microsoft’s global datacenters.
Scale instantly and elastically to accommodate diverse and unpredictable IoT workloads without sacrificing ingestion or query performance.
Generate personalized recommendations for customers in real time, using low-latency and tunable consistency settings for immediate insights.
Retail and e-commerce
Support in-depth queries over diverse product catalogs, traffic spikes, and rapidly changing inventory.
Elastically scale your database to accommodate unpredictable bursts of traffic and deliver low-latency multi-player experiences on a global scale.
Use Azure Functions and Azure Cosmos DB to build globally distributed, scalable serverless applications.
Take advantage of native Graph APIs on Azure Cosmos DB without any code changes, and issue globally distributed graph queries using Gremlin with Graph API.
Use Azure Cosmos DB as a fully managed database service for your MongoDB app, without any code changes, with native API support for MongoDB.
Azure Table storage APIs
Use Azure Cosmos DB as a globally distributed database for your Azure Table storage-based application, without any code changes, using the Table API. You get secondary indexes, global distribution, policy-based failover capabilities, and much more.
Apache® Cassandra API
Deliver Cassandra as-a-service over the power of Azure Cosmos DB. Use Cassandra SDKs and tools to build applications at near-infinite global scale with SLA-backed capabilities of the Azure Cosmos DB platform.
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