Firebug Lite : A JavaScript file you can insert into your pages to simulate the Firebug console in browsers that are not named Firefox.
TraceKit : Not all browsers support stack traces on error objects, but TraceKit squeezes out as much useful information as possible and normalizes it.
Hotwire : Hotwire is an alternative approach to building modern web applications without using much JavaScript by sending HTML instead of JSON over the wire. Th...