Considering that web application users use a wide variety of web browsers, web programmers must run compatibility and performance tests on various browsers before an app goes live. As a result, you'll have to install all the popular web browsers on the same computer, and you'll even have to run the same tests on all kinds of media devices (such like PC, smart phones and tablets) to simulate how an application works under different page sizes, resolutions and so on conditions. That is really head-scratching and very inefficient.

Slic3r is a lightweight, free and open-source 3D printing & slicing software developed by Alessandro Ranellucci from Italy (written in C++). Its comes with powerful functions, yet is convenient and simple to use. As one of the most professional and one of the few 3D printing programs, Slic3r's slicing speed is 100 times faster than the early Skeinforge, so it can definitely meet your high-tech 3D slicing needs.

SIW (short for System Information for Windows) is a very powerful and advanced computer detailed information analyzing and viewing tool, developed by Topala Software Solutions from Canada. This compact program enables user to easily browse quite extensive information about hardware and software along with their configuration of your computer. Besides, various network information can also be viewed here.

Uninstall Tool is a small, fast and powerful software forced uninstall tool developed by CrystalIDEA Software from Belgium. Its features and performance are much better than the "Add/Remove Programs/Programs and Features" of Windows, including easy removal of programs, residual files and registry entries the latter could not delete, so as to completely uninstall a piece of software.

XRECODE (XRecode, xrecode) is an ultra-efficient, all-purpose universal audio file format conversion tool. It can not only easily convert audio files from one format to another, but also extract audio files or background music and dialogue from music CD and video files, then convert the original file format into the one of your choice.