Roller is a free Chrome extension developed by Sprout. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension allows users to send websites they are surfing through to their friends' new tab.

With Roller, every time you open a new tab in Chrome, you will see websites that have been sent to you by your friends. This feature adds a personal touch to your browsing experience, allowing you to discover new websites and content based on recommendations from people you trust.

Overall, Roller is a convenient and user-friendly Chrome extension that enhances your browsing experience by enabling easy website sharing with friends.