Verilator

Verilator is a free and open-source software tool that compiles Verilog or SystemVerilog code into optimized C++ or SystemC models, enabling fast simulation of digital circuits. It supports multithreading, lint checks, and assertion insertion, making it a popular choice for verification and testing in the electronics industry. Verilator has been widely adopted by both academia and industry, with support from major vendors such as Arm and RISC-V.