Microsoft Visual Studio - Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.
UI Movement - The best UI design inspiration, daily
Visual Studio Code - Build and debug modern web and cloud applications, by Microsoft
UI Garage - Specific mobile and web design patterns for your inspiration
Xcode - Xcode is Apple’s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.
CodeMyUI - Handpicked code snippets you can use in your web projects