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

eSim is described as '(previously known as Oscad / FreeEDA) is an open source EDA tool for circuit design, simulation, analysis and PCB design' and is a circuit simulator in the education & reference category. There are more than 25 alternatives to eSim for a variety of platforms, including Windows, Linux, Mac, Web-based and Flathub apps. The best eSim alternative is KiCad, which is both free and Open Source. Other great apps like eSim 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.

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