16. Version: 2016/05/5
? MultiSIM BLUE : scheme, simulate, PCB layout,
BOM and purchase all in one integrated tool
? EAGLE : Schematic/Layout
? frizzing : document prototypes
? 123D : empowers you to bring your ideas to life
with free, easy to use online tools
? KiCad EDA : A Cross Platform and Open Source
Electronics Design Automation Suite
? Qucs : Universal Circuit Simulator.