We have developed a data logger utilizing Firebase as both the hosting and database platform to ensure seamless data collection and storage. The system is designed to monitor temperature and humidity using an ESP32 sensor module, which continuously records real-time data. To enhance accessibility, we have integrated a web-based interface that displays live readings in an intuitive and user-friendly format. Additionally, the platform includes graphical data representation for better analysis and allows users to export recorded data in Excel format, enabling efficient data management and further processing. This solution provides a reliable, scalable, and cost-effective approach to environmental monitoring.