Proxmox Virtual Environment's source code is published under the free software license GNU AGPL, v3 and thus is freely available for download, use and share. You can download the Proxmox VE ISO installer or inspect the code in the public code repository (git).
A Proxmox VE Subscription is an additional service program designed to help IT professionals and businesses to keep your Proxmox VE deployments up-to-date. A subscription provides access to the stable Proxmox VE Enterprise Repository delivering reliable software updates and security enhancements, and to technical help and support.
Choose the subscription that's best for you. Our four plans are flexible and scalable to your business needs. The subscription model is based on the number of physical servers and their occupied CPU sockets. The subscription period is one year from purchase time, and gives you access to the broad infrastructure of enterprise-class software and services.