The latest version of the JSPspEmu has been tested to work on the following browsers:
Opera and Chrome use V8 and perform the best with a faster and smoother experience. Internet explorer doesn't have any sound while the Safari browser lacks the WebGL support that is required. With enough optimization, some games can even run at a full 60 fps. Unfortunately, there hasn't been any update from the developer since 2015, thus the project was deemed inactive.