Robei is a graphical user interface for hardware design. It aims to simplify hardware design to play with boxes. This is a great tool for entry level hardware design, and is also a good tool for education. It integrates a very modern user interface, a very fast open source Verilog compiler and a simple waveform viewer. With this tool, you can design your hardware visually in both RTL level and behavior level, and view the simulation result through waveform. It is a tiny, fast software for hardware prototyping and verification.
