OpenStack Swift

OpenStack Swift is a distributed object storage system for unstructured data. It scales from a single machine to thousands of servers and suits backups, web and mobile content, and other data that grows without bound.

Clients read and write objects through a simple REST API, with official Python bindings provided. Swift is optimized for multi-tenancy and high concurrency. Internally it splits into proxy, account, container, and object servers, and a ring maps data to nodes for replication and durability.

Swift was originally developed for Rackspace Cloud Files and open-sourced in 2010 as part of OpenStack. It is licensed under Apache 2.0 and maintained as an OpenStack project with contributions from many companies.