Simon Willison’s Weblog

Visual Event. External code loading bookmarklet that visualises the JavaScript events hooked up to the current page, and lets you view the source code of the event handling function for each one. Only works for events added by jQuery, YUI or MooTools since those libraries maintain a cache of event handlers that they add, to work around the standard DOM’s omission of handler introspection.

# 10th December 2008, 3:38 pm / events, javascript, allan-jardine, bookmarklet, dom, jquery, mootools, visualevent, yui

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 / bookmarklet, firebug, firebuglite, debugging, javascript

Jash: JavaScript Shell (via) An advanced JavaScript interactive shell bookmarklet that works in IE, Firefox, Opera and Safari.

# 9th December 2007, 12:36 pm / gareth-rushgrove, jash, javascript, ie, firefox, opera, safari, bookmarklet, shell

XRAY now works in IE. Westciv’s smart CSS debugging bookmarklet now works in IE 6.

# 21st August 2007, 8:07 am / css, bookmarklet, debugging, ie6, westciv, xray

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 / dom, javascript, steve-chipman, modi, bookmarklet

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 / jeffrey-zeldman, westciv, xray, bookmarklet, canvas, javascript, steve-chipman