NI Circuit Design Suite software improves the PCB design process by integrating capture, simulation, and layout into a single toolchain with NI Multisim and Ultiboard software.


Altium Designer is described as 'Unified environment enables schematic capture, PCB layout, mixed-signal simulation, signal integrity analysis, real-time 3D editing, and ECAD-MCAD collaboration' and is a CAD software in the education & reference category. There are more than 50 alternatives to Altium Designer for a variety of platforms, including Windows, Linux, Mac, Web-based and Flathub apps. The best Altium Designer alternative is KiCad, which is both free and Open Source. Other great apps like Altium Designer are Fritzing, Square Sketch, Autodesk EAGLE and QUCS.
NI Circuit Design Suite software improves the PCB design process by integrating capture, simulation, and layout into a single toolchain with NI Multisim and Ultiboard software.


Multisim is industry-standard SPICE simulation and circuit design software for analog, digital, and power electronics in education and research.


Qucs-S is a spin-off of the Qucs cross-platform circuit simulator. "S" letter indicates SPICE. The purpose of the Qucs-S subproject is to use free SPICE circuit simulation kernels with the Qucs GUI.


Ngspice is a mixed-level/mixed-signal circuit simulator. Its code is based on three open source software packages: Spice3f5, Cider1b1 and Xspice. Ngspice is part of gEDA project, a full GPL'd suite of Electronic Design Automation tools.

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.

tscircuit is a framework for designing real electronics with Typescript and React. Your tscircuit code compiles into real-time previews for PCBs, schematics, 3D models and can be exported to fabrication files for manufacturing.


eSim (previously known as Oscad / FreeEDA) is an open source EDA tool for circuit design, simulation, analysis and PCB design.




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

atopile is a language and toolchain to describe electronic circuit boards with code. By replacing the point and click schematic interface with code, we introduce software development workflows like reuse, validation and automation to the world of electronics.

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...

