<![CDATA[Heterogeneous data management often faces challenges such as format inconsistency, high latency, and lack of automation, leading to inefficiencies and errors in data transformation. This research aims to develop a web-based system to automate data transformation and conversion across formats using a Representational State Transfer (RESTful) Application Programming Interface (API) architecture, with a Mithril.js frontend and Go backend. An experimental and system development approach was employed, comprising three stages: client-server architecture design, implementation, and testing. The system provides 11 primary API endpoints, such as /api/tasks and /api/transformations, to manage tasks and data transformations. The Single Page Application frontend offers intuitive navigation with menus for task management, data sources, and activity logs. Functional testing on Comma-Separated Values, JavaScript Object Notation, and SQLite formats yielded accurate transformations, including text prepending, data type conversion, and lowercase normalization. Performance evaluation using Google Lighthouse recorded a median score of 85, indicating high performance. The system enhances efficiency and accuracy compared to manual methods, supporting cross-platform interoperability. However, limitations include support for only simple tabular formats and lack of security features. This research offers a lightweight solution for data transformation, with potential applications in organizational data integration and business analytics.]]>
