MyDefrag or JkDefrag is a freeware disk defragmenting utility for Windows. Developed by J.C.Kessel
License: Free
MyDefrag offers advanced customization, real-time defragmentation, and a portable version, making it suitable for tech-savvy users and those needing extensive control. In contrast, Windows Disk Defragmenter is more user-friendly and integrated into the OS, providing essential features for casual users and SSD optimization.