jQuery is by far the most popular JavaScript library and it simplifies many JavaScript related tasks so much.

However, as expected, it can't handle everything but targets the most common tasks. And, sometimes, we need that missing pieces.

jQuery++ is a set of DOM helpers and special events which fills a part of this gap. It is not a UI library (like jQuery Tools) but only low-level DOM-utilities.

Some of the plugins included are; a modified .animate (which uses CSS animations when possible) .cookie or .formParams (which serializes form data). And, there are events for drag, drop, swipe and much more.

It is possible to use each plugin one-by-one or a custom-download-generator helps packing only the selected ones into a single file.

DOM Monster is a bookmarklet, created by Thomas Fuchs of script.aculo.us, for analyzing the DOM and several other features of a page.

It works cross-platform/browser, checks the HTML + JavaScript codes and can come with warnings/suggestions like:

• Reduce the number of tags that use the style attribute (85 elements)
• Found 16 JavaScript globals. Reducing them can increase performance
• and more..

The bookmarklet is not an all-in-one solution, however, can be used side-to-side with other tools like Firebug, PageSpeed, YSlow, etc.

Also, it is open source and can be improved/customized further.

DomSearch.JS is a jQuery plugin that simplifies searching the DOM and filtering results.

Using the plugin, we can target an element (like a list or a table) and search values inside it. Once found, the irrelevant results will be hidden automatically leaving the results visible.

It makes use of LiquidMetal (a scoring algorithm) for a very fast search specially in long lists.