Online study- create a link for Implicit Relational Assessment Task and Stop-It task

I am a researcher at the University of Utah trying that is trying to find a way to have participants perform a task online that is part of a software. The participants can not download the software so I need a way to present the task and record their data online. One of the tasks is similar to the Harvard IAT (https://implicit.harvard.edu/implicit/takeatest.html). I am hoping for something simpler.