Safari is one of the good web browsers and can be found in Apple's Mac OS. It is good not just in GUI, but also in performance, bookmarks, pop-up blocking, search, tabbed browsing, forms autofill, built-in RSS, Security, and other features. You can find comparisons between different browsers along with Safari at Apple Safari page here.

Apple has released Safari web browser for Windows. Now we can have a feel of Mac web browsing in Windows. You can find Safari here. Safari browser supports tabbed windows similar to Mozilla Firefox and Internet Explorer. It is found to be fast compared to other browsers.