CAMRIE is a web-based application designed to emulate MRI experiments. It provides a numerical simulator of the Bloch equations, and enables to import electromagnetic field distributions as well as voxelized objects. A user-friendly graphic user interface guides users through the selection of predefined object geometries, with corresponding B0, B1 and gradient fields distributions. Users can then customize sequence parameters and simulate the full MRI experiment from k-space acquisition to image reconstruction. Results can be seamlessly visualized and compared across different settings. The application will be distributed via the Cloud MR portal, which allows running simulations on the cloud.