Good Keywords is a free Windows application for finding the perfect set of keywords for your web pages. Good Keywords makes use of various tools provided by search engines like the Overture Search Suggestion Tool, Search Engines Like Yahoo, Google, MSN, Ask and other services like Alexa.
Please note that you can manually do most of the tasks performed by Good Keywords. However using Good Keywords makes it all very simple, fast and straight forward. You can also use Good Keywords as a meta tag creation tool. Keep adding the keywords you need into the Keyword Pad available within the software.
Once you are done, a simple click will get you the required keyword meta tag... ready to be pasted into your HTML file. (Note: This is a legacy option. Most search engines no longer bother about the meta keyword tag).