I had to create a bookmarklet a few weeks ago for an Intranet site and this tool was a life saver. The Bookmarklet Crunchinator is a free tool that enables you to create your JavaScript in a textbox complete with multiline formatting.
Get your Javascript code together, paste it into the input field and when you are ready to create the bookmarklet, simply click on the Crunch button and it compresses and converts your JS code to a friendly bookmarklet format that you can drag to your toolbar for testing. The Bookmarklet Crunchinator makes your code bookmarklet-friendly by automatically wrapping it in a function.
