Expo : Expo is a framework and a platform for universal React applications. It is a set of tools and services built around React Native and native platforms ...
Astro : Astro is an all-in-one web framework for building fast, content-focused websites.
choo : A 4kb framework for creating sturdy frontend applications
chromeless : The chromeless project is an experiment into making it possible to build a web browser using only web technologies, like HTML, JavaScript, and CSS.
Onsen : Open source HTML5 hybrid app framework for PhoneGap & Cordova
Mobile-optimized HTML5, CSS and JavaScript with Web components
Responsive layout, Materi...
Meteor is an ultra-simple environment for building modern websites.