Circuit Diagram is a free application for making electronic circuit diagrams and exporting them as images. Design circuits online in your browser or using the desktop application.
Cost / License
- Free
- Open Source
Platforms
- Windows
- Online

Coulomb is described as 'Simple and elegant circuit simulator written using Java, Gtk4 and libadwaita' and is a circuit simulator in the education & reference category. There are more than 50 alternatives to Coulomb for a variety of platforms, including Windows, Mac, Linux, Web-based and Flathub apps. The best Coulomb alternative is KiCad, which is both free and Open Source. Other great apps like Coulomb are Fritzing, Square Sketch, LibrePCB and Autodesk EAGLE.
Circuit Diagram is a free application for making electronic circuit diagrams and exporting them as images. Design circuits online in your browser or using the desktop application.

Sketch, simulate, and share your circuits, entirely in your browser -- no install required. Easy schematic capture and powerful SPICE-like, mixed-mode circuit simulation helps EE students, electronics hobbyists, and electrical engineers design faster.




iCircuit is the easy to use electronic circuit simulator and designer - the perfect tool for students, hobbyists, and engineers.


iCircuit is the most popular iPhone & iPad alternative to Coulomb.
eSim (previously known as Oscad / FreeEDA) is an open source EDA tool for circuit design, simulation, analysis and PCB design.




Horizon is a free EDA package. Contribute to carrotIndustries/horizon development by creating an account on GitHub.

TINA Design Suite is a powerful circuit simulation package for analyzing, designing, and real time testing of analog, digital, VHDL, MCU, SMPS, RF, communication, optoelectronic and mixed electronic circuits and their PCB layouts.




Developers tool for strip board projects. It has useful functions for designing, documenting and testing project boards. Therefore you will find functions like auto-generation of components lists, a connection test, a editable library with a large number of symbols and...


We build the pickaxes of hardware engineering. Ideation tools, schematic capture, PCB layout, design hosting, parts library management, and affordable prototyping.
TinyCAD is an open source schematic capture program for MS Windows. Use TinyCAD to produce professional circuit diagrams and export net list information to PCB applications.

Integrated schematic editor and simulator. Dynamic analysis updates waveforms and curves as you edit Native digital simulator Worst Case analysis to find the statistical and extreme limits of performance Smoke Analysis to assess how close the circuit is to violating maximum opera.






PCB Elegance is a suite of circuit board design tools for Windows. Including schematic capture, board layout, and manufacturing file generation. First released in 1998, it was proprietary software until 2012, when it was released as open source software under the GPL.


