The Lightweight Alarm Clock, Timer & Countdown is a Chrome extension developed by Andy Zett. It falls under the category of Browsers and specifically belongs to the Add-ons & Tools subcategory.

This extension offers users the functionality of an alarm clock, timer, and countdown, complete with sound and desktop notifications. Users have the ability to set multiple alarm times and can even include optional alarm messages. Additionally, there is a selection of different alarm sounds to choose from.

One notable feature of this extension is its focus on being lightweight, performance-oriented, and privacy-conscious. Unlike many similar extensions, it does not utilize any background resources, as confirmed by Chrome's built-in task manager. Furthermore, it does not employ any tracking software like Google Analytics.

In the latest version 3.0.2, the maximum number of alarms has been increased to 30, providing users with even more flexibility and convenience.