The use of online learning and teaching in this pandemic time are considered vital in promoting continuous education. Nowadays, educators are encouraged to transform all of their traditional teaching materials into an online format to facilitate continuous learning. This present study aimed to assess the developed Web-Based Module in Trigonometric Functions (WBMTF) as perceived by Information Technology (IT) Experts and Mathematics Experts of Bohol Island State University, Philippines. A descriptive developmental research design was employed. The study utilized two survey questionnaires. The first questionnaire was the “CAI Material Checklist” from Hossain & Akter (2013); Cajandig & Lomibao (2021). The second questionnaire was an “Evaluation of Instructional Technology Materials (EITM). It was a modified questionnaire patterned from Cajandig, A. and Lomibao, L. (2021). Both questionnaires used the 5-point Likert Scale. Results revealed that WBMM was highly acceptable in terms of technology and very highly acceptable in terms of a design of technology as assessed by Information Technology (IT) Experts. Moreover, mathematics experts rated “highly acceptable” to relevance to the curriculum, organization and structure, and instructional quality. The researcher concluded that WBMTF is highly acceptable as a learning material for online learning and teaching. As recommended, restrictions to wrong inputs must be considered, insertion of tutorial videos and varied digital tools to supplement learning and teaching. Further, WBMTF can be used as an alternative platform for online learning and teaching and future researchers may conduct parallel studies that will incorporate different pedagogy to maximize learning and teaching.