Easy Meta Tag Generator is a free webtool that helps generate the different meta tags your webpages need. Meta tags are HTML tag content that provide metadata about your website such as description, keywords, etc. Meta tags are used by search engines to help index and to provide relevant content in their search results.These tags are usually placed on the HEAD section of every website page.
There are meta tags beyond just description and keywords, though those two are picked on the most. I've broken down the most-used (in my experience) by the good, the bad, and the indifferent. You'll notice that the list gets longer as we get to the bad ones. I didn't get to cover all of the meta tags possible to add, but there's a comprehensive meta tag resource you should check out if you're interested in everything that's out there.