Abstract: In today's digital landscape, individuals create online accounts across numerous platforms, resulting in an extensive and often unmanaged digital footprint. Over time, many users lose track of where their email addresses have been used, increasing the risk of data breaches, identity theft, and privacy violations. This project, "Where’s My Email? Mapping Your Online Accounts," aims to develop a system that enables users to identify and monitor online accounts associated with their email addresses. By leveraging data breach repositories, open-source intelligence (OSINT) techniques, and email-based lookup tools, the system offers detailed insights into linked accounts, potential vulnerabilities, and exposed credentials. The project seeks to enhance cybersecurity awareness by empowering users with greater visibility over their digital presence, ultimately supporting informed decision-making in account management and proactive risk mitigation.