Software Alternatives, Accelerators & Startups

Proxmox VE VS OpenNebula

Compare Proxmox VE VS OpenNebula and see what are their differences

Proxmox VE logo Proxmox VE

Proxmox is an open-source server virtualization management solution that offers the ability to manage virtual server technology with the Linux OpenVZ and KVM technology.

OpenNebula logo OpenNebula

OpenNebula is an Open Source Cloud & Edge Computing Platform to build & manage Enterprise Clouds. OpenNebula provides unified management of IT infrastructure, avoiding vendor lock-in & reducing complexity, resource consumption, & operational costs 🚀
  • Proxmox VE Landing page
    Landing page //
    2023-09-16
  • OpenNebula Landing page
    Landing page //
    2023-09-30

OpenNebula

$ Details
freemium $3000.0 / Annually ( Unlimited CPUs, Cores, VMs. Plus €200 ($250) per managed node )
Platforms
Hypervisors VMWare KVM LXD Cloud Edge Docker Azure Linux
Release Date
2008 July
Startup details
Country
Spain
State
Madrid
City
Madrid
Founder(s)
Ignacio M. Llorente
Employees
50 - 99

Proxmox VE features and specs

  • Open-Source
    Proxmox VE is completely open-source, allowing users to inspect, modify, and distribute the software as needed. This fosters a large community and encourages collaboration and transparency.
  • Cost-Effective
    There are no licensing fees for Proxmox VE, making it a cost-effective solution for enterprises, small businesses, and home labs.
  • Comprehensive Feature Set
    Proxmox VE offers a wide range of features, including clustering, KVM and LXC virtualization, high availability, backups, and integrated disaster recovery.
  • Integrated Web-Based GUI
    It provides a powerful and user-friendly web interface for managing VMs, containers, storage, and network configurations, which reduces administration complexity.
  • Enterprise Support Options
    While the software itself is free, Proxmox VE offers paid support plans that provide professional assistance, updates, and enhancements.
  • Scalability
    Proxmox VE supports clustering, allowing users to scale their virtualized environments across multiple physical servers with ease.

Possible disadvantages of Proxmox VE

  • Learning Curve
    For users new to virtualization or Linux-based systems, there may be a significant learning curve to fully utilize Proxmox VE’s features.
  • Hardware Compatibility
    Though generally broad, some specific hardware might not be fully supported, requiring additional configuration or workarounds.
  • Community-Based Support
    Free support is generally community-based, which can sometimes lead to less timely or reliable assistance compared to paid, vendor-provided support.
  • Updating and Upgrading
    While updates and upgrades are regular, they might occasionally introduce compatibility issues or require manual intervention.
  • Feature Gaps with Proprietary Solutions
    Even though Proxmox VE is feature-rich, there might be specific advanced features available in proprietary solutions (like VMware vSphere) that Proxmox VE lacks.
  • Integration with Third-Party Tools
    Integrating Proxmox VE with certain third-party tools and systems can sometimes be challenging, necessitating custom solutions or additional configurations.

OpenNebula features and specs

  • Cloud Automation
  • Cloud-based Infrastructure
  • Open-source
  • Kubernetes Integration
  • Edge

Proxmox VE videos

Proxmox Virtual Environment 5.2 - Review and Installation

More videos:

  • Review - Homelab / Office Lab Open Source Virtualization XCP-NG & Proxmox Compared
  • Tutorial - Virtualize Everything! - Proxmox Install Tutorial
  • Review - Proxmox VE Full Course: Class 1 - Getting Started

OpenNebula videos

Introduction to OpenNebula

More videos:

  • Tutorial - OpenNebula - Preventing Vendor Lock-in with an OpenNebula Multi-Cloud
  • Tutorial - vOneCloud - Deploy your OpenNebula Cloud in vSphere in 5 minutes

Category Popularity

0-100% (relative to Proxmox VE and OpenNebula)
Cloud Computing
71 71%
29% 29
Virtualization
100 100%
0% 0
Virtualization Platform
0 0%
100% 100
Virtual Machine Management

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Proxmox VE and OpenNebula

Proxmox VE Reviews

Explore Top VestaCP Alternative: Find the Perfect Control Panel for Your Hosting Needs
Proxmox Virtual Environment is an extensive and user-centric Open Source virtualization platform designed specifically for managing Virtual Appliances and Virtual Machines with ease. This formidable solution seamlessly integrates the KVM hypervisor and LXC containers, along with software-defined storage and networking functionalities, within a unified structure. Proxmox VE...
Source: cyberpanel.net
10 Best VMware Alternatives and Similar Software
Proxmox runs on a modified Linux Kernel that is based on Debian Linux/GNU. You can run Linux and Windows under VMs using Proxmox, with each VM having its own virtualized hardware and components. Proxmox is best for personal servers, whereas VMware is best for businesses.
Best Server Virtualization Software for 2021
Proxmox is a lower-cost alternative to Red Hat in Linux-rich environments. It has carved out a niche in Germany and other parts of Europe, particularly among SMBs with IT staff experienced in open source software. Its combination of server virtualization, containers and software defined storage in one product makes it especially attractive to organizations wishing to...
12 Best FREE Virtual Machine (VM) Software in 2020
Proxmox VE is another platform for virtualization. It helps you to integrates KVM hypervisor and LXC containers and networking functionality on a single platform.
Source: www.guru99.com
Best Server Virtualization Software
Like Red Hat, Proxmox VE has earned a reputation as a reliable and effective virtualization tool for Linux workloads and environments. Proxmox is known for bringing server virtualization, containerization, and software-defined storage capabilities to a single, open-source product, making it a direct competitor to Virtuozzo.

OpenNebula Reviews

We have no reviews of OpenNebula yet.
Be the first one to post

Social recommendations and mentions

OpenNebula might be a bit more popular than Proxmox VE. We know about 10 links to it since March 2021 and only 9 links to Proxmox VE. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Proxmox VE mentions (9)

  • Adventures in Homelabbing: From Cloud Obsession to Self-Hosted Shenanigans
    Now that I know I do enjoy homelabbing, I have moved forward with purchasing the last computer parts I need for a basic home server before these tariffs skyrocket the prices even further. For that machine, I will most likely set up Proxmox, and either set up CasaOS on the mini PC or set it up as a node in a Proxmox cluster to serve as a sandbox environment. - Source: dev.to / 21 days ago
  • Setting up the home lab: Terraform
    When I worked for CBS, I discovered Terraform, which is tool that allows you do define infrastructure as code ("IaC"). I just recently purchased a home lab server (the details of how I have that set up will be discussed in a future article) and installed Proxmox on it. I'd like to improve my DevOps skills, so I thought I'd play with Terraform for my home lab. Eventually I'd like to get my entire home... - Source: dev.to / 10 months ago
  • VMware Kills Off 56 Products
    Proxmox [1] will see a boost in popularity, good. I'm using the free version in combination with the backup server on both small (several RasPi 4's spread over several countres running the 'PiMox' [2] port) as well as medium (DL380) sized systems and find it to be a stable as well as practical platform. [1] https://proxmox.com/en/ [2] https://github.com/pimox/pimox7. - Source: Hacker News / over 1 year ago
  • Deadbolt & QVPN (OpenVPN)
    Have a look at Proxmox if you decide on running containers and have any old hardware laying around. Source: about 2 years ago
  • A little help with table structure?
    Hey everyone! I'm making a server management panel with Laravel using Proxmox (https://proxmox.com/en/) as the API for directly managing the virtual machines. Source: over 2 years ago
View more

OpenNebula mentions (10)

  • Top 10 European Open-Source Projects to Watch in 2025
    Supports Kubernetes for cloud-native uses. Discover more by visiting the OpenNebula official website. - Source: dev.to / about 1 month ago
  • Euro-cloud provider Anexia moves 12,000 VMs off VMware to homebrew KVM platform
    Or just use https://opennebula.io/ based on KVM, still works with vmware if needed. ~20 year old project. It has legs. - Source: Hacker News / 4 months ago
  • Seamless and Fully Automated VMware Migration with OneSwap
    Many organizations have already successfully migrated to OpenNebula, an open source cloud and edge computing platform. The solution offers greater flexibility, substantial cost savings, and vendor neutrality, allowing companies to retain full control over their cloud infrastructure. - Source: dev.to / 7 months ago
  • Common OpenSource Cloud OS
    OpenNebula is a cloud computing toolkit which is used to manage heterogeneous distributed datacenter infrastructures. And it controls a data center’s virtual infrastructure to build private, public as well as hybrid implementations of IaaS. Source: almost 2 years ago
  • VMware Alternatives?
    Since it hasn't been mentioned I'll throw https://opennebula.io/ out there for this. Source: over 2 years ago
View more

What are some alternatives?

When comparing Proxmox VE and OpenNebula, you can also consider the following products

vSphere - Get started with VMware vSphere editions, the world’s leading server virtualization platform and the best foundation for your apps, your cloud, and your business.

oVirt - oVirt is a virtualization management application.

VirtualBox - VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as...

c12n.cloud - 100% Open Source based cloud solution for your own private IaaS based on OpenStack, Kubernetes and Ceph

Hyper-V - Install Hyper-V on Windows 10

VMmanager - VMmanager is a QEMU/KVM server virtualization management software, which presents perfect tools for creating virtual machines, providing VPS services, and building cloud infrastructure.