The best open source alternative to OpenStack is QEMU. If that doesn't suit you, our users have ranked more than 50 alternatives to OpenStack and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to OpenStack are Proxmox Virtual Environment, CloudStack, SmartOS and Xen.
QEMU, an open-source hypervisor, performs hardware virtualization, emulates CPUs using dynamic binary translation, and supports various architectures. It runs diverse unmodified guest OS, provides device models, and offers mixed translation modes for efficient execution.
Proxmox Virtual Environment is a complete and easy to use Open Source virtualization platform for running Virtual Appliances and Virtual Machines. Proxmox VE tightly integrates KVM hypervisor and LXC containers, software-defined storage and networking functionality on a single...
Apache's CloudStack is a Project backed by Citrix and designed to be a direct competitor to OpenStack. It is designed to deploy and manage large networks of virtual machines, as a highly available, highly scalable Infrastructure as a Service (IaaS) cloud computing platform.
SmartOS is a hypervisor lean enough to run entirely in memory, powerful enough to run as much as you want to throw at it. Provisioning is blindingly fast, thanks to zones and ZFS file system creation.
Xen.org, home of the Xen hypervisor, the powerful open source industry standard for virtualization. It is a native (bare-metal) hypervisor providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently.
Straightforward and lightweight, but featureful. MicroClouds serve compute near consumers, wherever they may be.
XCP-ng is a high-performance, enterprise-level hypervisor with a rich ecosystem and is the result of massive cooperation between individuals and companies. All commercial features are enabled with no commitment required to a support agreement.
Harvester is the next generation of open-source hyperconverged infrastructure solutions designed for modern cloud-native environments.
OpenVZ is container-based virtualization for Linux.
OpenVZ creates multiple secure, isolated Linux containers (otherwise known as VEs or VPSs) on a single physical server enabling better server utilization and ensuring that applications do not conflict.
Each container performs.
Eucalyptus is open source cloud software for building AWS-compatible private and hybrid clouds.
Radius is an open-source, cloud-native, application platform that enables developers and the operators that support them to define, deploy, and collaborate on cloud-native applications across public clouds and private infrastructure.
The Simplest Cloud Management Experience Simple yet Powerful Turnkey Solution to Build Clouds and Manage Data Center Virtualization.
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CloudStack has less moving parts in general than other Cloud Control Panels.