Microsoft Visual Studio - Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.
IntelliJ IDEA - Capable and Ergonomic IDE for JVM
MonoDevelop - MonoDevelop enables developers to write desktop and web applications on Linux, Windows and Mac OS X.
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.
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.
Atom - At GitHub, we’re building the text editor we’ve always wanted: hackable to the core, but approachable on the first day without ever touching a config file. We can’t wait to see what you build with it.