MovementModeler

MovementModeler converts your videos into clean and accurate stick-figure motion clips using fully on-device processing. The app is designed for both creators and computer-vision professionals, offering smooth multi-person tracking, adjustable filtering options, and exportable BODY-25 JSON data without requiring any accounts or cloud services. Simply load a video from your library, and MovementModeler generates a stick-figure preview that you can refine using real-time controls to reduce jitter, fill missing limbs, or stabilize joint movement. Multi-person scenes are supported through automatic track identification, allowing the app to maintain consistent person labels even during movement or occlusion. Once you are satisfied with the results, you can export a clean MP4 stick-figure rendering for sharing or use the BODY-25 JSON output for research, robotics, sports analysis, or machine-learning pipelines. MovementModeler is suitable for dancers, athletes, creators, students, and developers who want a straightforward and reliable way to extract motion from video. All computations are performed locally to ensure that your videos and data remain private, and no information leaves your device unless you explicitly export it. The app is simple enough for everyday users but powerful enough for technical workflows, providing a fast and flexible tool for exploring movement, studying motion, or creating shareable animations.