Tab Janitor is a free Chrome extension developed by sargeantmarshie. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools program.

This extension aims to tackle the issue of tab clutter by removing redundant URL navigation in Chrome. When a user opens a tab that is similar to other active tabs, Tab Janitor collapses the similar tabs, leaving only the new one. The definition of "similar" is determined by the options set by the user for the extension.

Tab Janitor provides two options for determining similarity: Base URL and Entire URL. The Base URL option compares the URLs for similarity up until the URL's arguments list (the '?' character in the URL). On the other hand, the Entire URL option compares the URLs based on their entirety. If a URL is not an exact match, the extension will not collapse the other tabs.

With Tab Janitor, users can effectively manage their open tabs and reduce clutter, making it easier to navigate and find the desired content without getting overwhelmed by multiple tabs. This extension is a valuable tool for Chrome users who frequently work with multiple tabs and want to maintain a clean and organized browsing experience.