Official Card Counter Trello with Totalizer is a free Chrome add-on developed by Henrique Brugugnoli. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools.

The main purpose of this add-on is to provide users with an easy way to keep track of card counts in Trello. It displays the number of cards in each list as well as the total number of cards on the board. By clicking on the total cards label, users can access more detailed information including the percentage and statistics of their cards.

This add-on is a useful tool for Trello users who want to efficiently manage their cards and have a clear overview of their board's progress. With its simple and intuitive interface, Official Card Counter Trello with Totalizer enhances the Trello experience and helps users stay organized.