contentEditable

Sometimes handy, but mostly funny is the contentEditable property.This bookmarklet sets the contentEditable property to true, allowing you to edit almost any web page.

Okay, only the version in your browser, but it's a handy way to copy their html or prank your friends.

A screen-shot like this is created with only a few edits.

In Chrome it also activates the spell checker so you can check the spelling of the entire site.

This is also the way most online WYSIWYG HTML editors work.

Enable:

javascript:(function(){document.body.contentEditable=true;})()

Disable:javascript:(function(){document.body.contentEditable=false;})()