Unikernels are open-source projects that are reinventing how developers create, deploy and scale their applications — making them leaner, far more secure and much more portable.

Unikernels are a new approach to build, deploy and manage cloud software.

Most software on the cloud is written and deployed the same way we do it for desktops. This usually involves taking an operating system (e.g. Linux), piling on a lot of additional software, and finally perching the actual application on top.