TakeOff is a smart documentation viewer for CSS, jQuery, Ruby, Rails and the iOS/OS X API docsets. After adding documentation sets to the library, everything works offline and super-fast without having to wait for pages to load. The user interface is streamlined for looking up information quickly by searching and navigating the search results using the keyboard.
What's new in TakeOff
Support for importing Xcode 5 documentation sets
Fixed a bug where the wrong encoding was used for outline entries in Xcode doc sets