deepXIT BlackHat EU, London
[deep eSupport] by TeamViewer
Windows, MacOS, Linux, iPhone/iPad iOS, AndroidOS
ColorPix is a useful little color picker that grabs the pixel under your mouse and transforms it into a number of different color formats.
You can use the built-in magnifier to zoom in on your screen, click on a color value to copy it directly to the clipboard, and even keep ColorPix on top of all other apps and out of the way.
The GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.
XnView, a software to view and convert graphic files, really simple to use. Support of more than 400 graphics formats. XnView exists for Windows, MacOS X, Linux x86, Linux ppc, FreeBSD x86, OpenBSD x86, NetBSD x86, Solaris sparc, Solaris x86, Irix mips, HP-UX, AIX. The most important features are: Import about 400 graphic file formats and Export about 50 graphic file formats.