We will explore the process of migrating virtual machines (VMs) from VMware environments to OpenStack using open source tools. As organizations increasingly adopt cloud-native and open-source technologies, the need to seamlessly transition from traditional virtualization platforms like VMware to modern cloud infrastructures such as OpenStack has become crucial. We will discuss the challenges and strategies involved in this migration, including the selection of appropriate tools, preparation of the source and target environments, and the actual migration process. Key open source tools such as virt-v2v will be highlighted, demonstrating their roles in converting VM formats, adapting configurations, and ensuring compatibility. The session will cover best practices for minimizing downtime and ensuring data integrity during the migration, along with a live demonstration of the migration process. Attendees will gain practical insights into managing this transition efficiently and learn how to leverage open source solutions to achieve a successful VMware to OpenStack migration.