In the landscape of modern education, the integration of technology, particularly within language learning, has gained substantial scholarly attention. Among digital platforms, WhatsApp has undergone a notable transformation, evolving from a basic messaging application to a versatile social hub. Its role expanded significantly during the Covid-19 pandemic, becoming a pivotal tool for online teaching and learning activities, prevalent not only in higher education but also across secondary levels. While existing studies have predominantly focused on user interaction within WhatsApp, limited attention has been directed toward the technical aspects or the application’s usage in the teaching and learning process. This research aims to comprehensively explore WhatsApp’s potential as a facilitator for English language studies, employing a semiotic multimodal analysis approach guided by Poulsen’s seminal work on semiotic technology. The study delves into WhatsApp’s intricate network of semiotic resources, semiotic regimes, and interactions, unveiling the complex interplay between language elements, multimodal features, and cultural aspects within this digital realm. Through the lens of semiotics, multimodal studies, and social semiotics, this investigation endeavors to offer a holistic understanding of WhatsApp’s use as an educational tool, shedding light on its multifaceted role in contemporary educational contexts.