X (formerly known as Twitter) plays a significant role in the daily lives of undergraduate students. X offers various features which allows the user to engage in a discussion on a community called base account. Having more than 800.000 followers who share the same interest in learning English, @englishfess_ is one of the most influential accounts that is used by Indonesian users to learn English. X’s efficacy in various educational domains have been researched. This study is aimed to explore the research question: “What are the students' perceptions in the use of @englishfess_ as grammar learning media?”

This study used a quantitative method to explore the students’ perceptions of the use of @englishfess_ as a grammar learning media. The participants were students in ELESP Sanata Dharma University batch 2020. The instruments used were questionnaire, interview, and document analysis.

The findings showed ELESP students positively perceived the use of @englishfess_ as grammar learning media. It helps the students in fostering self-learning motivation, reducing anxiety in online discussions, giving a reliable explanation in an informal setting, and creating a nurturing environment which encourages the students to use the language they learn. Therefore, integrating X in an academic setting is worth consideration.

Keywords: Perception, @englishfess_, Grammar Learning Media