I love progressive web apps (PWAs). The following web apps are all wonderful in their own right, far exceeding the experience of a standard run-of-the-mill website. Desktop Clock is a highly customizable clock web app that features not only a timepiece, but also a world clock, a stopwatch, and a timer. Fast.com is a simplistic internet speed test web app that immediately springs into action the moment it's launched. is another clock web app, but it stands out with its incredible attention to detail and its micro interactions.