M3O is described as 'Open source public cloud platform. An AWS alternative for the next generation of developers. Consume public APIs as simpler programmable building blocks for a 10x better developer experience' and is an website. There are more than 10 alternatives to M3O, not only websites but also apps for a variety of platforms, including SaaS, Linux, Self-Hosted and Amazon Web Services apps. The best M3O alternative is DigitalOcean. It's not free, so if you're looking for a free alternative, you could try OpenStack or Amazon Elastic Compute Cloud. Other great sites and apps similar to M3O are Heroku, Linode, Microsoft Azure and Google App Engine.