
Railway
Render
Vercel
Heroku
Render UIKit
Netlify
Coolify
Edge computing is the new frontier.

Proxmox VE
OpenNebula
VMware ESXi
XCP-ng
VMware vCenter
vSphere
Harvester
100% Open Source based cloud solution for your own private IaaS based on OpenStack, Kubernetes and Ceph

Which is more popular?
Based on our record, Fly.io seems to be more popular. It has been mentioned 484 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | fly.io | c12n.cloud |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States | Startup from Germany · 10 - 19 employees · 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Fly.io yet.
c12n is a 100% open-source, fully automated cloud platform that puts you back in control of your own sovereign Infrastructure as a Service (IaaS). c12n is more than just an alternative to VMware; it’s a reliable, secure, open-source cloud solution that caters to modern enterprise needs, a...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
We FLY a SPACESHIP! Video Game FLY.io Computer App with HobbyKidsTV
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Fly.io and c12n.cloud.
c12n.cloud's answer:
c12n is the only open-source cloud solution integrating end-to-end GitOps automation with OpenStack, Kubernetes and Ceph. c12n is highly scalable, secure and requires minimum day-2 Ops.
c12n.cloud's answer:
Why pay for VMware when you can have 80% of its functionality for free? c12n is 100% Open Source and 100% Automated with 0% License fees. c12n puts you back in control of your own sovereign Infrastructure as a Service (IaaS), it is designed to be vendor-lock free, giving you the freedom to choose your support providers or even operate the platform with your own in-house expertise like some customers do.
c12n.cloud's answer:
Managed Service Providers (MSP), cloud providers and literally any organization that wants to run their own cloud either due to security & legal requirements or to reduce costs compared to public cloud or proprietary solutions such as VMware and Nutanix.
c12n.cloud's answer:
The team behind c12n has been working with Openstack for more than 10 years. Tools such as Kubernetes and ArgoCD gave us a completely new set of possibilities to deploy, upgrade and operate OpenStack and Ceph in a highly efficient way. Since 2017 we’ve been running the first OpenStack installation on Kubernetes and quickly realized the power of such a combination.
c12n.cloud's answer:
The power behind c12n lies in its foundation of proven open-source technologies. At its core is OpenStack, a free, open standard cloud computing platform that provides all major IaaS features and has a global footprint of over 45.000.000 compute cores.
This is complemented by Kubernetes, the leading container orchestration platform, and Ceph, a distributed software-defined storage platform capable of holding 50 PB+ of data. We also integrate ArgoCD for Continuous Delivery, Prometheus for comprehensive monitoring, and MAAS for managing the lifecycle of bare-metal.
c12n.cloud's answer:
This information is confidential
Share your experience with using Fly.io and c12n.cloud. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Yes! Several platforms offer real free tiers in 2026. SnapDeploy gives you free containers (no time limits) with no credit card required — and your hours only count when your app is running. Render offers free web...
Fly.io is one the best free alternatives to Heroku that you can use. It’s designed for developers and students to run small applications for free and scale costs affordably as you grow. Just like Heroku it comes with...
We have no reviews of c12n.cloud yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Tool What it is Official link Cloudflare Workers Edge runtime + Durable Objects - the supported Deploy migration target Https://workers.cloudflare.com {/* MONETIZATION NOTE: official URL above; Cloudflare's affiliate terms were... - Source: dev.to / 27 days ago
Go 1.26 standard library, modernc.org/sqlite for a pure Go SQLite, and solana-go for the RPC client, transaction building and the SPL Memo instruction. React 19, Vite 8, TypeScript 7 and Tailwind CSS 4 on the page. Alegreya and IBM Plex,... - Source: dev.to / 2 months ago
Fly.io opens up two things Heroku keeps at arm's length: real multi-region deployment and full control over the runtime. Heroku's Common Runtime offers two regions (US and EU), and Private Spaces gets you one region at a time from a... - Source: dev.to / 4 months ago
Tracking c12n.cloud since Aug 2024.
When comparing Fly.io and c12n.cloud, you can also consider the following products.


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Render is a unified platform to build and run all your apps and websites with free SSL, a global CDN, private networks and auto deploys from Git.
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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 🚀
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Vercel is the platform for frontend developers, providing the speed and reliability innovators need to create at the moment of inspiration.
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VMware ESXi is a bare metal hypervisor that installs easily on to your server and partitions it into multiple virtual machines. Discover what it can do for you today
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