Simon Willison’s Weblog

Firebug Lite 1.2 (via) Huge upgrade to the IE/Opera/Safari bookmarklet version of Firebug—it now has DOM element inspection, XHR tracking and an interactive console, among other features. 27th July 2008, 9:30 am

Jash: JavaScript Shell (via) An advanced JavaScript interactive shell bookmarklet that works in IE, Firefox, Opera and Safari. 9th December 2007, 12:36 pm

XRAY now works in IE. Westciv’s smart CSS debugging bookmarklet now works in IE 6. 21st August 2007, 8:07 am

Mouseover DOM Inspector v2.0. Steve Chipman’s excellent debugging bookmarklet created back in 2005—includes useful keyboard shortcuts for quickly manipulating the DOM of the current page. 30th July 2007, 5:13 pm

XRAY web developer’s suite (via) Smart new bookmarklet from westciv—kind of like Steve Chipman’s MODI but with the addition of the canvas element for box model visualisation. 30th July 2007, 5:11 pm