Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Xamarin.Android - Integrated environment for building not only native Android but iOS and Windows apps too.
Dokku - Docker powered mini-Heroku in around 100 lines of Bash
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.
Google Cloud Functions - A serverless platform for building event-based microservices.
Rider - Rider is a cross-platform .NET IDE based on the IntelliJ platform and ReSharper.