Efficient attendance and leave management are critical for modern organizations, yet many rely on outdated methods that hinder productivity and compliance. Currently, the company tracks employee attendance through Skype groups, where staff message keywords like “absent,” “working,” or “lunch break,” while leave records are maintained in separate Excel sheets. This paper proposes an Attendance Management System—a responsive web application designed to centralize and automate these processes using geolocation and manual entry options. The system includes an employee interface for logging attendance, submitting leave requests, and viewing personal data, alongside a management portal for oversight, approvals, and data exports. Built with HTML, CSS, JavaScript, PHP (Laravel), and MySQL, this solution improves accuracy, streamlines administration, and ensures accessibility across devices, offering a scalable tool for businesses of all sizes.