DCPROSENS is a web-based platform designed for calibrating mouse sensitivity across multiple video games. Its primary function is to convert sensitivity settings between over 15 competitive titles, including Valorant, Counter-Strike 2, Apex Legends, and Overwatch 2, using precise cm/360 matching. The platform also provides tools for neuromuscular testing to help users find a scientifically optimized sensitivity, as well as features for matching hip-fire and ADS sensitivity at various zoom levels. In addition to conversion, DCPROSENS offers a database of professional player settings, including DPI, sensitivity, eDPI, cm/360, and hardware configurations, along with a crosshair creator and exporter for Valorant and CS2. Users can browse and copy pro player crosshair codes, access detailed specifications for over 200 mice (sensor, dimensions, weight, switch data), and calculate minimum mouse pad dimensions based on their cm/360 value. The platform includes over 20 precision tools, such as a field of view converter that handles horizontal, vertical, and diagonal formats, and a calculator for effective FOV and pixel ratio when using 4:3 stretched resolutions. A guided sensitivity discovery process uses structured iterations to help users refine their settings. DCPROSENS also supports side-by-side comparisons of professional configurations and gear, and provides complete rig breakdowns of elite players. For training, it includes an aim trainer and utilities like a pad friction comparator for cloth, hybrid, and glass surfaces. Typical use cases involve gamers who play multiple titles and want consistent aim across them, or those looking to replicate or study the setups of professional players. The workflow generally starts with entering a known sensitivity and DPI from one game, then converting to equivalent values for other supported games. Users can further calibrate using the neuromuscular testing tool, explore pro settings, and design custom crosshairs. The platform is free to use and requires no installation, functioning entirely through a web browser. It supports all major competitive game engines and is intended for players seeking a comprehensive, data-driven approach to sensitivity and aim optimization.