OptiApertura is an advanced optical analysis tool that helps users refine laser beam performance by evaluating the interaction between aperture size and beam characteristics. Unlike general-purpose calculators, it provides immediate insights into beam quality factor (M²), filtering efficiency, and the optimal aperture-to-beam ratio, enabling precise adjustments for laboratory experiments, optical system design, and research projects. With an intuitive interface, gradient visuals, and accurate scientific modeling, the app makes complex beam optimization both accessible and practical.