OptiMirra is a cutting-edge optical analysis tool that transforms complex Fresnel reflection equations into an intuitive, interactive experience for professionals and researchers in laser optics. It precisely calculates how light behaves when striking coated or dielectric surfaces, revealing both reflectivity and phase shift variations with angle and polarization. Designed for clarity and precision, OptiMirra combines real-time physics-based computation with a visually refined gradient interface that enhances usability in both laboratory and educational environments. Whether optimizing mirror coatings for laser resonators, studying polarization-dependent reflection, or exploring total internal reflection phenomena, OptiMirra delivers accurate, physics-grounded insights in a modern, elegant, and accessible format making it an indispensable companion for optical design and analysis.