KubeVirt

Vagrant provides the framework and configuration format to create and manage complete portable development environments. These development environments can live on your computer or in the cloud, and are portable between Windows, Mac OS X, and Linux.

boot2docker is a lightweight Linux distribution based on Tiny Core Linux made specifically to run Docker containers. It runs completely from RAM, weighs ~27MB and boots in ~5s (YMMV).

It is an open-source API, daemon and management tool for managing platform virtualization. It can be used to manage KVM, Xen, VMware ESXi, QEMU and other virtualization technologies.

It is a leading virtualization management platform optimized for application, desktop and server virtualization infrastructures. It is used in the world's largest clouds and enterprises.

It is a bare metal hypervisor that installs easily on to your server and partitions it into multiple virtual machines. It effectively partitions hardware to consolidate applications and cut costs.

Otto automatically builds development environments without any configuration; it can detect your project type and has built-in knowledge of industry-standard tools to setup a development environment that is ready to go. When you're ready to deploy, otto builds and manages an infrastructure, sets up servers, builds, and deploys the application.

It provides a web based UI for the management of XenServer installations without requiring any agent or extra software on your hosts nor VMs.

azk lets developers easily and quickly install and configure development environments on their computers.

It is a web application that allows you to easily and quickly generate custom Vagrant and Puppet controlled virtual machines.

It offers simplified management, faster app development, and consistent Azure services. Easily organize, govern, and secure Windows, Linux, SQL Server, and Kubernetes clusters across data centers, the edge, and multi-cloud environments right from Azure. Architect, design, and build cloud-native apps anywhere without sacrificing central visibility and control. Get Azure innovation and cloud benefits by deploying consistent Azure data, application, and machine learning services on any infrastructure.