Azure Cosmos DB for developers
Learn to develop fast, scalable applications using Azure Cosmos DB
Build modern apps at any scale
Azure Cosmos DB is a fully managed and serverless distributed database supporting NoSQL and relational workloads of any size or scale. Develop high-performance applications fast with SLA-backed speed and availability for NoSQL data, elastic and instant scalability, and pay-as-you-go pricing. Use your database engine of choice with Azure Cosmos DB support for open-source PostgreSQL, MongoDB, Apache Cassandra and more.
Learn NoSQL in 30 days
Register for the 30 Days to Learn It challenge to learn how to develop, work with, and migrate NoSQL apps through self-guided tutorials in just a month. After you complete the challenge, you'll qualify for a 50 percent discount on the Azure Cosmos DB Developer Specialty certification exam.
Get started with tutorials and quickstarts
Azure Cosmos DB for NoSQL
Build a .NET console app to manage resources using the Azure Cosmos DB for NoSQL client library.
Azure Cosmos DB for PostgreSQL
Build a Java app that connects to PostgreSQL, creates a distributed table, and modifies data.
Azure Cosmos DB for MongoDB
Learn how to configure an Azure Cosmos DB for MongoDB account, create a database, and perform CRUD operations.
Azure Cosmos DB for Apache Cassandra
Run a Java app that creates a Cassandra database and container for managing API data.
Azure Cosmos DB Essentials videos
Watch the video series to learn the foundational concepts you'll need to start building today.
What is Azure Cosmos DB?
Discover why developers are choosing to use NoSQL data in their apps with Azure Cosmos DB.
Azure Cosmos DB use cases
See how industries across healthcare, manufacturing, and retail use Azure Cosmos DB in their solutions.
Understanding Azure Cosmos DB APIs
Get insight on how to pick the right database API for your app.
What is a Request Unit?
Learn about the currency that powers database operations, and how it makes capacity planning simple.
Browse reference architectures
Get inspired by exploring real-life examples of solution ideas across a variety of industries.
Serverless
Enable serverless computing by integrating databases and event-driven apps using Azure Functions and Azure Cosmos DB.
IoT
Set up end-to-end stream processing pipelines with Azure Cosmos DB and Azure Stream Analytics.
Retail and e-commerce
Build highly scalable, resilient architectures for online order processing.
Globally distributed apps
Guarantee access to users around the world with high availability and low latency using Azure Traffic Manager, Azure Active Directory, and Azure Cosmos DB.
See what developers are building with Azure Cosmos DB
Delivering frustration-free metering and billing
Learn how Zero Friction created a scalable, high-performance platform with two apps—one that helps suppliers convert meter data into invoices, and another that helps end customers understand their energy consumption and make payments—using Azure Cosmos DB.
Content distributor upgrades streaming experience
See how Visaic delivered seamless, end-to-end streaming experiences for B2B and B2C clients, as well as continuous innovation through AI and machine learning, by partnering with Microsoft Azure.
Implementing a large-scale digital health platform
See how New South Wales Health Pathology created a flexible, secure enterprise solution for statewide health diagnostics information using Azure Cosmos DB as a central piece of the architecture.
Accelerating green expansion using Azure services
Learn how SitePro brings digital innovation to the oil and gas industry—and now, green tech—by providing end-to-end, IoT-enabled automation using Azure Cosmos DB and Azure Cache for Redis.
