LoL Absent is a free Windows application developed by tecnobillo, falling under the Security & Privacy category with a focus on Ad Blockers. It stands out for its commitment to user privacy by not collecting any user information. The program is open source, allowing users to access and review its source code on SourceForge.

LoL Absent serves as a tool to block the contact list in League of Legends, enabling players to appear offline during solo play or when with a premade group. This feature prevents communication during the pick and ban phase while allowing messaging during gameplay. Moreover, users can discreetly continue playing DuoQ with a premade in the same room. The latest version of LoL Absent utilizes the IronPython Runtime for enhanced speed and stability, albeit now requiring installation instead of being portable.