Qualisys Track Manager (QTM) is an intuitive motion capture software that acts as the primary hub for the collection, analysis, and organization of movement data utilizing Qualisys systems, enabling accurate tracking in 2D, 3D, and 6DOF of markers, rigid bodies, and skeletal structures in real-time with minimal delay. It provides seamless integration with external devices such as force plates, EMG instruments, eye trackers, video systems, and IMUs, facilitating real-time data streaming to third-party software via its built-in server and SDK capabilities, while also managing calibration, system configuration, and trajectory modifications within a single user-friendly platform. The sophisticated motion capture algorithms and reliable inverse kinematics solver of QTM efficiently address occlusions and scenarios involving multiple actors, and the system's trajectory editor, automatic marker identification (AIM), as well as its labeling, filtering, gap-filling, and measurement features, significantly enhance the efficiency of data processing. Furthermore, the software is designed to cater to a diverse range of applications, making it an essential tool for researchers and professionals in various fields.