Tablenator is a free Chrome add-on developed by tablenator.com that aims to assist developers in making tables accessible. This add-on focuses specifically on tables and eliminates everything else from a web page, allowing developers to easily identify and address accessibility issues.

With Tablenator, tables are numbered and any issues related to accessibility are highlighted. It identifies tables that lack accessibility markup and those with conflicting markups. This feature helps developers ensure that their tables are properly marked up for accessibility, making them easier for users with disabilities to navigate and understand.

One unique aspect of Tablenator is its use of color to indicate relationships between table cells. This visual representation helps developers quickly identify and understand the structure of their tables, making it easier to make necessary adjustments.