Rainmeter displays customizable skins, like memory and battery power, RSS feeds and weather forecasts, right on desktop. Developed by Rainys
License: Open Source
Screenlets is both a Python framework to simplify writing Cairo-drawn desktop widgets, similar to those found in the "Dashboard" feature of OSX, and a collection of widgets written using the framework. It is designed to work with any modern Linux desktop. Developed by Rico Pfaus, Helder Fraga, Natan Yellin
License: Open Source
Rainmeter offers extensive customization and advanced features for users who want to create their own desktop widgets, while Screenlets provides a simpler, more user-friendly experience with basic widgets and cross-platform support.