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.
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
Large - On-demand Slack bot that can get you anything for the office
Autodesk EAGLE - Autodesk EAGLE is an electronic design automation (EDA) software.
Altium Designer - PCB Design Software
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...