SpiraBeam is an innovative optical beam analysis tool that merges precise scientific calculation with intuitive visualization to explore the fascinating world of structured light. Unlike standard calculators, it not only determines orbital angular momentum (OAM) and beam divergence from user-defined parameters but also dynamically generates a visual orientation pattern that reflects the helical phase structure of vortex beams. Its sleek gradient interface, real-time validation, and interactive design make it a versatile companion for researchers, engineers, and students who want to understand, simulate, or teach the principles of vortex beam generation in an accessible and visually engaging way.