HSlayers NG is a web mapping library written in Javascript. It extends OpenLayers 6 functionality and takes basic ideasn from the previous HSlayers library, but uses modern JS frameworks instead of ExtJS 3 at the frontend and provides better adaptability. That’s why the NG (“Next Generation”) is added to its name. It is still under development and provided as open source. HSLayers is built in a modular way which enables the modules to be freely attached and removed as far as the dependencies for each of them are satisfied. The dependency checking is done automatically.

Core of framework is developed using AngularJS, requireJS and Bootstrap. This combination of frameworks was chosen mainly for providing fast and scalable development and for providing modern responsive layout of application.