Nigerian correctional facilities rely on inefficient manual record-keeping processes, hindering effective prisoner information management and inter-agency coordination. This study aims to develop a comprehensive, centralized, web-based Prison Management System (PMS) to modernize and streamline operations in Nigerian correctional centers. The research employed a multifaceted data collection approach, including interviews, observations, and form evaluations. System development utilized the Incremental Model, incorporating MySQL, PHP, and JavaWeb technologies. The proposed PMS introduces a unified platform consolidating prisoner profiles, including demographic details, biometric data, parole status, visitor records, and departure logs. The system enables remote access, real-time information exchange, and intelligent administration through cloud computing integration. This digital transformation promises to elevate the Nigerian correctional system's efficiency, accountability, and inter-agency coordination, contributing to a more effective and secure justice framework.