This plugin checks for all custom keys in page/post ending with _Custom_Field_Cookie, writes key as cookie name & value as cookie value.

Post Meta is a wordpress custom post field, post type and taxonomy management Plugin. Shortcode with GUI, Import & export and many more.

Meta Optimizer is a WordPress plugin that helps you speed up your website by using meta data. It lets you optimize the meta tables for your posts, comments, users, and terms.

Front-End Admin Panel for Posts, Pages & Custom Post Types Custom Fields