OpenStack

OpenStack is an open-source cloud computing infrastructure software project that offers a reliable and flexible platform for managing compute, storage, and networking resources in data centers. It is widely recognized as one of the most active open-source projects globally, with a large and vibrant community of contributors. OpenStack provides a framework for creating and managing both public and private clouds, making it suitable for a wide range of users, including enterprises and service providers. With features such as unified management, partner certifications, and secure private cloud deployment, OpenStack offers an extensive set of tools and services to meet diverse cloud computing requirements.

https://www.openstack.org/