Amazon S3

Simple, durable, massively scalable object storage

Amazon Simple Storage Service (Amazon S3) is object storage with a simple web service interface to store and retrieve any amount of data from anywhere on the web. It is designed to deliver 99.999999999% durability, and scale past trillions of objects worldwide.

Customers use S3 as a bulk repository, or "data lake," for analytics; backup & recovery; disaster recovery; and serverless computing. Many cloud-native applications even use S3 as primary storage.

It's simple to move large volumes of data into or out of S3 with Amazon's cloud data migration options. Once data is stored in Amazon S3, it can be automatically tiered into lower cost, longer-term cloud storage classes like S3 Standard-Infrequent Access, S3 One Zone-Infrequent Access, Amazon S3 Glacier, and Amazon S3 Glacier Deep Archive for archiving.


Amazon S3 is easy to use with a web-based management console and mobile app and full REST APIs and SDKs for easy integration with third party technologies.


Amazon S3 is simple to use with a web-based management console and mobile app. S3 also provides full REST APIs and SDKs for easy integration with third-party technologies.


Amazon S3 provides durable infrastructure to store important data and is designed for durability of 99.999999999% of objects. Your data is redundantly stored across multiple facilities and multiple devices in each facility.


With Amazon S3, you can store as much data as you want and access it when needed. You can stop guessing your future storage needs and scale up and down as required, dramatically increasing business agility.


Amazon S3 supports data transfer over secured channel and automatic protection of your data once it is uploaded. You can also configure bucket policies to manage object permissions and control access to your data using AWS Identity and Access Management (IAM).


Amazon S3 Standard is designed for up to 99.99% availability of objects over a given year and is backed by the Amazon S3 Service Level Agreement, ensuring that you can rely on it when needed. You can also choose an AWS region to optimize for latency, minimize costs, or address regulatory requirements.

Low Cost

Amazon S3 allows you to store large amounts of data at a very low cost. Using lifecycle policies, you can set policies to automatically migrate your data to S3 Standard-Infrequent Access, S3 One Zone-Infrequent Access, Amazon S3 Glacier, and Amazon S3 Glacier Deep Archive as it ages to further reduce costs.


Amazon S3 is deeply integrated with other AWS services to make it easier to build solutions that use a range of AWS services. Integrations include Amazon CloudFront, Amazon CloudWatch, Amazon Kinesis, Amazon RDS, Amazon Glacier, Amazon EBS, Amazon DynamoDB, Amazon Redshift, Amazon EMR, and Amazon VPC.

Easy to Manage

S3 Storage Management features allow you to take a data-driven approach to storage optimization, data security, and management efficiency. These enterprise-class capabilities give you data about your data, so you can manage your data based upon what it is instead of where it's stored.

Query in Place

Only AWS offers Amazon S3 Select, a way to retrieve only the subset of data you need from an S3 object, which can improve the performance of most applications that frequently access data from S3 by up to 400%.

Use Cases

Content Storage and Distribution

Amazon S3 provides a highly durable and available store for a variety of content, ranging from web applications to media files. It allows you to offload your entire storage infrastructure onto the cloud, where you can take advantage of Amazon S3’s scalability and pay-as-you-go pricing to handle your growing storage needs. You can distribute your content directly from Amazon S3.

For sharing content that is either easily reproduced or where you’re storing an original copy elsewhere, Amazon S3’s Standard - Infrequent Access Storage (S-IA) feature provides a compelling solution. For example, if you’re storing media content in-house but you need to provide accessibility to your customers, channel partners, or employees, S-IA is a low-cost solution for storing and sharing this content.

Storage for Data Analysis

Whether you’re storing pharmaceutical data for analysis, financial data for computation and pricing, or photo images for resizing, Amazon S3 is an ideal location to store your original content. You can then send this content to Amazon EC2 for computation, resizing, or other large scale analytics – without incurring any data transfer charges for moving the data between the services. You can then choose to store the resulting, reproducible content using Amazon S3’s Reduced Redundancy Storage feature (or, of course, you can store it using Amazon S3’s standard storage as well).

Backup, Archiving and Disaster Recovery

Amazon S3 offers a highly durable, scalable, and secure solution for backing up and archiving your critical data. You can use Amazon S3’s Versioning capability to provide even further protection for your stored data. You can also define rules to archive sets of Amazon S3 objects to Amazon S3 Glacier and Amazon S3 Glacier Deep Archive’s extremely low-cost storage service based on object lifetimes. As your data ages, these rules enable you to ensure that it’s automatically stored on the storage option that is most cost-effective for your needs.

Static Website Hosting

You can host your entire static website on Amazon S3 for an inexpensive, highly available hosting solution that scales automatically to meet traffic demands. Self-hosting a highly available website that can handle peak traffic loads can be challenging and costly. With Amazon S3, you can reliably serve your traffic and handle unexpected peaks without worrying about scaling your infrastructure. Amazon S3 is designed for 99.99% availability and 99.999999999% durability, and it gives you access to the same highly scalable, reliable, and fast infrastructure that Amazon uses to run its own global network of web sites. You also benefit from pay-as-you-go pricing. You pay only for the capacity you use. Amazon S3’s website hosting solution is ideal for websites with static content, including html files, images, videos, and client-side scripts such as JavaScript. (Amazon EC2 is recommended for websites with server-side scripting and database interaction).

Learn more about Amazon S3

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Intended Usage and Restrictions

Your use of this service is subject to the AWS Customer Agreement.