Greasemonkey is a Firefox extension that allows you to customize the way webpages look and function.
Hundreds of scripts are already available for free. And if youre the tinkerer sort, you can also write your own. More Info »
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Greasemonkey compatible script manager for Chrome. Tampermonkey is a userscript manager with full Greasemonkey support for Google Chrome and Chromium Browser. Chrome Web Store: ...
Scriptish forked off Greasemonkey because enough developers felt its development had grown stagnant.
A Mozilla Firefox extension, Ubiquity is a collection of quick and easy natural-language-derived commands that act as mashups of web services. Allowing users to get information and relate the same to current...
Your Bookmarklets, On Steroids Quix is an extensible bookmarklet, that allows you to easily access all your bookmarks and bookmarklets, across all your browsers, while maintaining them in only one spot. All...
Violentmonkey, UserScript support for Opera, just like Greasemonkey for Firefox and Tampermonkey for Chrome.
Create and manage add-ons made from Greasemonkey and Scriptish user scripts
Yet another Greasemonkey available as Chome and Safari extension.
GreaseKit is a SIMBL plugin, that adds user scripting to Safari, Mailplane, Diet Pibb.app and all WebKit applications.
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