Autodesk Tinkercad
Description: Autodesk Tinkercad is a free, easy-to-use web-based CAD modeling tool for creating 3D digital designs. It is aimed at hobbyists, educators, and students.
Type: software
LTspice
Description: LTspice is a free circuit simulation software by Analog Devices. It is used for simulating analog and mixed-signal circuits. LTspice allows schematic capture and waveform viewing to verify circuit designs and study circuit behavior.
Type: software