Check out this great list of free web-based instructional technology:

Bower, M., & Torrington, J. (2020). Typology of free web-based learning technologies (2020). EDUCAUSE digital library. https://library.educause.edu/resources/2020/4/typology-of-free-web-based-learning-technologies

Free Web-based Learning Technologies

Googlesheet of technologies 

Contact the ITCS Department if you have questions or need assistance with using Instructional Technologies.