Userscripts.org

Expand shortened URLs (i.e. TinyURL.com, is.gd, bit.ly, etc.) wherever you go by harnessing the power of LongURL.org.

Translates the selected text into a tooltip automatically. Also displays alternative translations. Based on Google Translation Tooltip MLiteKeysOn.

Shows passwords on mouse hover or focus

Autoloads for next page of Google Images search results & Enables the images to be embeded in a preview tooltip.

Displays a tooltip for YouTube videos with video information and a small player for a preview.(English/German)

Instead of an 'in reply to [someone]' link on twitter, see the actual tweet in a tooltip

Reveals destination URLs hidden by TinyURL

Translate words on a webpage from Hebrew to English and vice-versa in little tooltips

For all images with an alt and no title, copy the alt to the title, to make them visible as tooltips.

Translates selected text into a ‘tooltip’ via Google translate

Makes link target URL appear in the link tooltip

Show character count when mouseover on textarea

Shows the "hover text" for some comics on the page

Display tooltip with movie or game info when hovering compatible links

Advanced website usability script that makes more or less fancy tooltips out of standard title attributes!

Shows "alt" attribute text in tooltips

Add Scripture tooltips from any online Bible to any Bible reference

dict.cn 利用dict.cn的服务，给浏览器页面添加划词搜索功能

Puts alt text or source filename in image title attribute, if title is empty.

Sets email subject and snippet tooltips.

this script does some modifications on 4fuckr.com as you hover the picture thumbnails on the site you will see them in a full size tooltip

script to add the title attribute to images (based on the alt-attribute)

Displays info tooltips on the thumbnail images on pixiv.

Forces display of tooltip previews in vBulletin thread lists, even if the original poster attempted to obsfucate their content by eg. wrapping it in quote BBCode.

Auto Translate Words on a Webpage

Reveals destination URLs hidden by snipurl( www.snipurl.com)

For all input boxes in a form, put the title content as input's name

Improves the info tooltips of thumbnails (makes them look prettier and adds further information).

This script makes image alt text appear in tooltips when the mouse hovered over it.

Converts specific text strings to links to the corresponding pages with preview tooltips.