FlexyTrello is a free Chrome add-on developed by martin.mouterde that aims to enhance the user experience on Trello, a popular project management tool. With FlexyTrello, users can make Trello lists more flexible by adding the ability to resize lists, display them on several columns, and collapse/expand lists.

One of the standout features of FlexyTrello is the ability to resize lists. This feature allows users to adjust the width of lists according to their preference, providing a more customizable and visually appealing layout. Additionally, FlexyTrello allows users to display lists on multiple columns, enabling them to view and organize their tasks in a more efficient manner.

Another useful feature offered by FlexyTrello is the ability to collapse/expand lists. This feature comes in handy when dealing with long lists, as it allows users to hide or show the contents of a list with a simple click, reducing clutter and improving overall productivity.

The latest release, version 1.3, also introduces the option to access Trello directly from the extension's options page. This makes it even more convenient for users to manage their Trello boards without having to navigate away from the extension.

Overall, FlexyTrello is a valuable add-on for Trello users who want to enhance their productivity and customize their Trello experience. With its resizable lists, multi-column display, and collapsible lists, FlexyTrello offers a range of features that can greatly improve the usability of Trello for both personal and professional use.