Undum : A client side framework for hypertext interactive fiction games
Streamlit : Streamlit is an open source app framework in Python language. It helps us create web apps for data science and machine learning in a short time.
Onsen : Open source HTML5 hybrid app framework for PhoneGap & Cordova
Mobile-optimized HTML5, CSS and JavaScript with Web components
Responsive layout, Materi...
Foundation : An easy to use, powerful, and flexible framework for building prototypes and production code on any kind of device.
LÖVE is a framework for making 2D games in the Lua programming language. LÖVE is totally free, and can be used in anything from friendly open-source hobby projects, to evil, closed-source commercial ones.