Custom Post Template is a free WordPress plugin that enhances the post editing experience by allowing users to select different templates directly from the post edit screen. This functionality is akin to the template selection for pages, enabling greater customization for individual posts. The plugin simplifies the process of using custom post templates, which are defined using specific PHP comments at the top of the template files. Users can create unique layouts and designs tailored to specific content without modifying the core theme files.

The plugin is designed to replace the default single.php template for specified posts, providing a streamlined approach to post presentation. However, it is important to note that this plugin does not alter templates for posts displayed in listing pages such as archives. Users can also implement custom templates for specific post types using the provided cpt_post_types filter, enhancing the plugin’s flexibility and usability for various content types.