Apache CloudStack

CloudStack
Original authorsCloud.com, Citrix
DeveloperApache Software Foundation
Stable release
4.21.x (LTS)4.21.0.0 / August 24, 2025 (2025-08-24)
4.17.x (LTS)4.17.2.0 / December 16, 2022 (2022-12-16)
Written inJava (primarily), Python
PlatformJava
TypeCloud computing
LicenseApache License 2.0
Websitecloudstack.apache.org
RepositoryCloudStack Repository

CloudStack is open-source Infrastructure-as-a-Service cloud computing software for creating, managing, and deploying infrastructure cloud services. It uses existing hypervisor platforms for virtualization, such as KVM, VMware vSphere, including ESXi and vCenter, XenServer/XCP and XCP-ng. In addition to its own API, CloudStack also supports the Amazon Web Services (AWS) API and the Open Cloud Computing Interface from the Open Grid Forum.