Amazon Simple Storage Service (Amazon S3) is an object storage service that offers industry-leading scalability, data availability, security, and performance. This means that users can store and retrieve any amount of data, at any time, from anywhere on the web. S3 is designed to provide 99.999999999% durability and 99.99% availability of objects over a given year, making it a highly reliable storage option. It is frequently used to store static files such as images, audio, and video, as well as large data sets and backups.