Description: EasyEDA is an online PCB design and circuit simulation software. It allows users to design printed circuit boards, schematics, and electronic circuits online easily and for free.
Type: software
Description: Ngspice is an open-source circuit simulator for electronics and semiconductors. It allows analyzing, modeling, and testing analog, digital and mixed-signal circuits with over 500 spice models of MOSFETs, BJTs, diodes, transformers, etc.
Type: software
Pricing: Free