Azure Blob Storage
Massively scalable and secure object storage for cloud-native workloads, archives, data lakes, high-performance computing, and machine learning.
Store and access unstructured data at scale
Scalable, durable, and available
Sixteen nines of designed durability with geo-replication and flexibility to scale as needed.
Authentication with Azure Active Directory and role-based access control (RBAC), plus encryption at rest and advanced threat protection.
Optimized for data lakes
File namespace and multi-protocol access support enabling analytics workloads for data insights.
Comprehensive data management
End-to-end lifecycle management, policy-based access control, and immutable (WORM) storage.
Build powerful cloud-native applications
Store petabytes of data, cost-effectively
Build powerful data lakes
Scale up for HPC or out for billions of IoT devices
Comprehensive security and compliance, built in
Microsoft invests more than USD$1 billion annually on cybersecurity research and development.
We employ more than 3,500 security experts who are dedicated to data security and privacy.
Flexible pricing including reserved options to meet your cloud storage needs
Choose from four storage tiers based on how often you expect to access the data. Store performance-sensitive data in Premium, frequently accessed data in Hot, infrequently accessed data in Cool, and rarely accessed data in Archive. Save significantly by reserving storage capacity.
Get started with an Azure free account
Start free. Get USD$200 credit to use within 30 days. While you have your credit, get free amounts of many of our most popular services, plus free amounts of 55+ other services that are always free.
After your credit, move to pay as you go to keep building with the same free services. Pay only if you use more than your free monthly amounts.
After 12 months, you'll keep getting 55+ always-free services—and still pay only for what you use beyond your free monthly amounts.
Learn how to use Azure Blob storage.
Trusted by companies of all sizes
"Azure Blob Storage just works perfectly from an operational standpoint. It allows us to do some things that make our development faster and seamless. We're constantly developing applications in the test environment, which is just simple."
Mike Dunlop, President and Founder, Net-Inspect
CarMax drives online innovation with Azure
"Azure turned out to be perfect for solving our image storage problems. Azure Storage provided effectively limitless storage with read-accessible geo-replication, so we could deliver increased capability and resilience that was cost-effective."
Brandon Linton, Solution Architect, Online Systems Platform Team, CarMax
Frequently asked questions about Azure Blob Storage
A blob is a binary, large object and a storage option for any type of data that you want to store in a binary format. Learn about blob types.
A region is a set of datacenters deployed within a latency-defined parameter and connected through a dedicated, regional, low-latency network. Learn more.
You can take advantage of the Data Transfer tool in the Azure portal or compare different data transfer options.
Data in Azure Storage is encrypted and decrypted transparently using 256-bit AES encryption and is FIPS 140-2 compliant. Learn more about Azure Storage encryption.
Set your default account tier in the Azure portal. The Archive tier is available to GPv2 and Blob storage accounts and only available for individual block blobs and append blobs. Read more in the storage account overview.