Polymer vs Kube: What are the differences?
Developers describe Polymer as "A new library built on top of Web Components, designed to leverage the evolving web platform on modern browsers". Polymer is a new type of library for the web, designed to leverage the existing browser infrastructure to provide the encapsulation and extendability currently only available in JS libraries. Polymer is based on a set of future technologies, including Shadow DOM, Custom Elements and Model Driven Views. Currently these technologies are implemented as polyfills or shims, but as browsers adopt these features natively, the platform code that drives Polymer evacipates, leaving only the value-adds. On the other hand, Kube is detailed as "Built and designed to provide the most flexible yet powerful CSS framework to the community". As a complete and self-sufficient web framework, it is here to help you get the most out of your daily work. It takes care of routine stuff, saving you precious time for things that you love.
Polymer and Kube can be categorized as "Front-End Frameworks" tools.
Polymer and Kube are both open source tools. It seems that Polymer with 21.2K GitHub stars and 2.01K forks on GitHub has more adoption than Kube with 1.31K GitHub stars and 206 GitHub forks.