One of the few features I missed from Mac OS X is Quick Look. It allows user peek into a file content in a lightening speed by just pressing the Space key. Windows, on the other hand, does not has this handy feature … until now.

I am aware that several alternatives are already available on the Internet (e.g. WinQuickLook and Seer). Despite these options, I still decide to craft another one by myself, because they are either not being actively developed, lacks of variety, or asks for a amount of $$$.
Highlights

Tons of supported file types (full list here)
Fluent design (new in version 0.3)
Touchscreen friendly
HiDPI support
Preview from Open and Save File Dialog
Preview from 3rd-party file managers (see a list here)
Easy extended by plugins
Strict GPL license to keep it free forever