Champion Mastery Lookup Addon is a free Chrome extension developed by f.formenti.e. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory.

This extension provides a visual representation of the summoner table in ChampionMasteryLookup. It allows users to easily view the status of the levels of their various champions. By extracting data from the table provided by the ChampionMasteryLookup site, this addon simplifies the process of tracking champion mastery levels.

With Champion Mastery Lookup Addon, users can quickly and conveniently access information about their champion mastery levels without the need to navigate through multiple pages. The visual representation enhances the user experience by presenting the data in a clear and organized manner.

Overall, Champion Mastery Lookup Addon is a useful tool for League of Legends players who want to keep track of their champion mastery levels. Its straightforward functionality and intuitive design make it a valuable addition to any player's toolkit.