This changes the background color of a web page to white. Useful if you can't distinguish the text from the background.
Page Color to White
This bookmarklet lists the screen width and height and number of colors available:
Resize the window to 640 x 480 pixels (so you can check what a page looks like at a smaller resolution):
Resize (640 x 480)
To keep a bookmarklet, so you can use it on other pages later: In Internet Explorer, point at the bookmarklet link, click the right mouse button and choose "Add to Favorites". You can also drag the link up to your Favorites menu. To use the saved bookmarklet in Internet Explorer, simply click on it in your Favorites panel.
In Netscape Navigator, point at bookmarklet link, click the right mouse button and choose "Add Bookmark". You can also drag the bookmarklet to your Bookmarks menu; when the menu opens, drag to whichever place you prefer.
This bookmarklet takes you to the robots.txt file for the site you are visiting. The robots.txt file is used to indicate parts of a site that should not be crawled by search engines. It may or may not show you a "hidden" part of the site, or other interesting information. Not all sites have robots.txt files.
Encode and decode strings using the HTTP URL encoding scheme:
You can design bookmarklets that do general or very specific searches on just about any search engine.
Prompt for and search for a word in the UCSD Webster dictionary server:
If you are using a 56K modem to connect to the Internet, this will provide quick estimates of how long it will take to download a file of known size: