OpenStack is a free and open-source software platform for cloud computing, mostly deployed as infrastructure-as-a-service (IaaS), whereby virtual servers and other resources are made available to customers.
License: Open Source
Microsoft Hyper-V Server is a robust virtualization platform primarily suited for Windows-based environments, offering strong performance and management tools but limited flexibility and higher costs. In contrast, OpenStack is an open-source cloud computing platform that provides extensive customization and multi-tenancy capabilities, making it ideal for large-scale cloud deployments, though it comes with a steeper learning curve and increased setup complexity.