WPDBTotalCleaner is the new WordPress plugin which provides you a very easy way to clean up unnecessary Database tables from your WordPress site. The plugin is simple, lightweight and is compatible with bot single and multisite WordPress installations.
Installation & Usage: Install and activate WPDBTotalCleaner. After activation visit your admin area Dashboard -> WPDBTotalCleaner page and use delete buttons to remove the stuff you don’t want in your website. It also displays database size in MB.
Currently the plugin allows you to delete Un-Approved Comments, SPAM Comments, Approved Comments, Comments agent, Unlinked commentmeta, Akismet commentmeta, _transient_ options, _transient_feed options, Revisions, and Unused Tags & Categories.