This study investigated the effect of Zoom and Google Classroom E-learning platforms on students’ performance in Grammar at the Youth Resource Centre, Bonny Island, Rivers State. A quasi-experimental research design was adopted. The population of the study consisted of one thousand and eighty-four (1084) Senior Secondary Three (SSIII) students enrolled in the Youth Resource Centre Bonny Island in the 2020/2021 academic year. The sample size for this study comprised a total of 274 Senior Secondary Three (SS III) students made up of 170 male and 104 female students in intact classes determined purposively from the population. The instrument were used for data collection in this study was a researcher-made achievement test titled Grammar E-learning Achievement Test (GEAT). The reliability coefficient of the GEAT stood at 0.74 and was determined using Kuder- Richardson Formula 21 (K-R 21) technique. Mean and standard deviation were used to answer the research questions while ANCOVA was used to test the hypotheses. Findings revealed that, students taught grammar using Google classroom E-learning platform performed better than those who used Zoom E-learning platform. The study concluded that institutions of learning should be aware of students’ current needs and interest related to their learning environment for better knowledge acquisition, engagement and academic performance. Hence, the study recommended among others that Zoom and Google classroom platforms should be adopted in educational institutions as a form of blended learning strategy in addition to using other methods of teaching.