SonicRV is an educational platform for web-based simulation and visualization of RISC-V processor architectures. This includes single-cycle, multicycle and pipelined RISC-V processors, which have been derived from the textbook "Digital Design and Computer Architecture, RISC-V Edition" by S. Harris and D. Harris . SonicRV is developed by the Institute for Complex Systems (ICS) headed by Daniel Große, and is used in the computer architecture lecture at JKU.