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KiCad is a completely free, open-source electronics design suite. It features no board size limitations, supports up to 32 signal layers, includes a powerful 3D viewer, and has an active global community. 3. EasyEDA
EAGLE (Easily Applicable Graphical Layout Editor) is an electronic design automation (EDA) tool produced by CadSoft, now part of Autodesk. The software enables users to seamlessly connect schematic diagrams, component placement, PCB routing, and access a comprehensive library of components. eagle 6.6.0 professional free download