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CircuitLab

Sketch, simulate, and share your circuits, entirely in your browser – no install required.

20 Alternatives To CircuitLab

Autodesk EAGLE

Autodesk EAGLE is an electronic design automation (EDA) software.

Fritzing

Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to…

KiCad

A Cross Platform and Open Source Electronics Design Automation Suite
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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.
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PartSim

PartSim is a free and full-featured SPICE circuit simulator that runs directly in your browser.

Proteus PCB design

Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a…

QUCS

Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.

gEDA Project

All about General Public License (GPL) and Electronic Design Automation (EDA) software tools