SciNet is the supercomputer centre at the University of Toronto, hosting Niagara, one of the fastest supercomputers in Canada, plus a range of other systems. SciNet provides Canadian researchers with computational resources and expertise necessary to perform their research on scales not previously possible in Canada. We empower work from the biomedical sciences and aerospace engineering to astrophysics and climate science. Our free education and training program for students and users helps them obtain advanced computing skills and knowledge needed in their research and in the workplace. SciNet provides resources for the Digital Research Alliance of Canada.