Stacer is the most simple and advanced system optimizer and system monitor tool for Linux. It is an open-source tool developed by Oguzhan Inan and many other developers. Initially, it developed on the Electron environment, but now it has been rewritten in C++. This tool provides many features such as a cleaning system by removing unnecessary files and software programs. On Windows, CCleaner is the most popular tool for removing potentially unwanted files and cleaning the system. Similarly, the Stacer is the alternative to the CCleaner for monitoring and optimizing Linux systems. If you are a Linux system administrator and looking for the best and most modern system monitor tool, then the Stacer is for us.