The Aardvark bookmarklet is a tool for web developers/designers as well as casual users. To quickly see it in action on this page, run the demo .

Using Aardvark

Once you have installed Aardvark as a bookmarklet (it takes about ten seconds!), you may start it at any time by selecting it from the bookmarks menu or toolbar. Aardvark will run until you press the “Q” key to quit, or leave the page or refresh it.

As you glide the mouse over the page, you will see a red rectangle framing each element under the cursor. You will also see a little yellow caption showing the HTML element type and its class or id if they exist. Pressing certain keys on the keyboard (see below) will do various things, as described in the Keystroke list below.

The Keystrokes

You can then press certain keys on the keyboard (as indicated below) to do various things, such as delete the selected element from the page, isolate the element, or move the selection rectangle outward to the containing element. If you forget them, no problem: just remember to press "h" for help.