The era of the COVID-19 pandemic has changed the course of the world's education system. Various innovations carried out by educational institutions. They built an online platform to help facilitate access to teaching and learning that is fun and not boring for students in this pandemic era. This article focuses on research on the use of online learning platforms for EFL. The researcher used VOSviewer software to analyse and visualize the use of online learning platform for EFL. Through bibliometric analysis and knowledge domain mapping, we systematically evaluated global research trends in online English as a foreign language (EFL) learning platforms on the spine. Dimension was used to conduct a systematic literature search. Microsoft Excel, the Online Analysis Platform of Bibliometrics, and VOSviewer were used to analyze the number, countries, journals, and authors of the publications, total citations, average publication year, and institution sources. VOSviewer was used to analyze and visualize the hotspots. We found a total of 158 publications. VOSviewer classified the research hotspots into three categories: online learning platforms as supplements, complements, and substitutions. According to the average publication year, the most recent hotspot was online learning platforms as a replacement, and the oldest hotspot was online learning platforms as supplements. During the Covid-19 pandemic, the number of studies conducted on an online EFL platform has increased.