GParted (GNOME Partition Editor) is a free, open source, and user-friendly graphical partitioning tool that has become the standard partitioning program for Linux systems. This encyclopedia entry provides a detailed introduction to the software's history, purpose, and key milestones in its development, such as the introduction of NTFS and GPT support. The article guides the reader step-by-step, with numerous screenshots, through the most important disk management operations, from creating a partition table to creating, resizing, and moving new partitions, to safely finalizing the operations. A separate chapter covers the portable, bootable version of GParted Live, which also allows you to modify system partitions, and shows you how to start it. The article places special emphasis on security considerations, emphasizing the critical importance of backing up your data before partitioning.