JSON Generator - Create mock and sample JSON using a powerful template syntax
Xamarin.Android - Integrated environment for building not only native Android but iOS and Windows apps too.
Mockaroo - A realistic data generator to test your app
Qt Creator - Qt Creator is a cross-platform C++, JavaScript and QML integrated development environment. It is the fastest, easiest and most fun experience a C++ developer could wish for.
Vue-fullpage.js - VUE component for snap scrolling sites
Rider - Rider is a cross-platform .NET IDE based on the IntelliJ platform and ReSharper.