Qt Creator is a powerful and flexible cross-platform integrated development environment (IDE) with strong orientation and support for C/C++ native development.

1 Why to use Qt Creator?

Open Source
Cross Platform – Works perfectly on Linux, Windows and Mac OS X
Direct compatibility with other applications of Qt SDK (great for building GUI-applications!)
Actively developed and improved
Excellent syntax highlighting
Magnificent code browsing and navigation in combination with useful and customizable keyboard shortcuts
Great and generic (works with any file you include, it doesn’t have to know anything special about it)
Code completion support
Easily customizable and Extensible through plugins
Support for integration with various Source Control Management tools like Git, Subversion, Bazaar, Mercurial, CVS and more.
Debugger integration with both GDB and Microsoft’s Debugging Tools for Windows through CDB
Custom configure, build, clean and deployment steps
Integration with tools like Valgrind
Per project settings
Vim editing mode
Code snippets
A pretty fast IDE, even when indexing hundreds of files with hundreds of thousands lines of code for the first time
Linux Man Pages context help integration - thanks to the flexible Qt Help System, this can be extended to almost any API

2 Download and installation

Most of the main Linux distributions have binaries in their repositories. Otherwise, download and install Qt Creator from http://qt.nokia.com/downloads.

Installation example in Debian/Ubuntu: