KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
Autodesk EAGLE - Autodesk EAGLE is an electronic design automation (EDA) software.
Altium Designer - PCB Design Software
LibrePCB - LibrePCB is a free EDA software to develop printed circuit boards.
DipTrace - DipTrace - Professional Schematic Capture and PCB Design Software
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.