Add-Meta-Tags (AMT) is a Free open-source plugin for the WordPress Publishing Platform that generates metadata for your content and WooCommerce products, including the basic description and keywords meta tags, Opengraph, Schema.org, Twitter Cards and Dublin Core metadata.

It also supports advanced SEO title customization letting you take control of the title generation on every part of the web site. Moreover, a basic breadcrumb trail generator is provided for use with hierarchical post types. Last, but not least, it lets you customize the locale on a per post basis generating a proper hreflang for a signle language and, also, is out-of-the-box compatible with WPML and Polylang multilingual plugins (through the WPML language configuration file that ships with the plugin).

Add-Meta-Tags is one of the personal software projects of George Notaras. It is developed in his free time and released to the open source WordPress community as Free software.

Please visit the official Add-Meta-Tags development web site for more information.

It is actively maintained since 2006 (historical Add-Meta-Tags homepage).