Circuit Designers

KiCad is an open source software suite for electronic design automation (EDA) - designing schematics of electronic circuits and printed circuit boards (PCB). KiCad is developed by Jean-Pierre Charras. And features an integrated environment between schematic capture, bill of...

Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a powerful, integrated and easy to use suite of tools for professional PCB Design.

Schematic capture, Ngspice based simulation, PCB layout, custom PCB manufacturing, for electronic engineers, educators, students and hobbyists.

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

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.

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

Logical Network Editor that runs in your browser. Currently supports basic gates using boolean logic, smart wire routing and network simulation. The simplicity allows to quickly understand the principles of binary logic and simple circuit design.

Python simulation of logic gates, circuits, down to transistor level using std_logic levels. This served as a prototype for the faster and more fully featured jSimuGate, also on GitHub - innovation-plantation/simugate

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.

Explore Digital circuits online with CircuitVerse. With our easy to use simulator interface, you will be building circuits in no time. CircuitVerse contains most primary circuit elements from both combinational and sequential circuit design.

Educational virtual 3D laboratory simulator helps students, teachers, and tutors conduct electrical circuit experiments by providing realistic equipment access anywhere, avoiding availability issues and safety hazards, and enhancing learning with immediate feedback and...

VisCircuit is a note-taking tool that contains an easy circuit diagram drawer and a beautiful note editor, designed to help you learn about electronics and circuits more easily.

Automated schematic generation application.

The industry-leading, high-productivity, PCB-centric design solution for independent engineers.

Digital Logic Design is a Software tool for designing and simulating digital circuits. A circuit is composed of gates, flip-flops, standard combinational and sequential components and Modules. A number of gates, flip-flops and standard combinational and sequential components are...

Circuit schematic and layout editor program for Windows 2k, XP, Vista and 7.

Design & simulate gates & PLAs with transistors & diodes, Processors with integrated logic components, using std_logic signals. Easy to wire buses, reverse polarity of discrete parts, or change parts to open collector. Even apply DeMorgan on gates!.

Virtual Breadboard for Arduino is a learning 'app' version of VBB designed to help you take the first steps in the exciting world of physical computing with the Arduino microcontroller and ‘Breadboard’ based electronic circuit models.

ECStudio is a set of powerful tools used for building electronic circuits, SPICE simulation, and calculation of circuits. These tools are complemented by the information center containing resources, connector pinouts and short (20 pages) interactive book explaining basic...

Flux is where engineers shape the future of hardware, together. Contribute to the open source community, manage your projects, review schematics like a pro, track issues and features, power your workflows, and secure work before you commit it.

Circuit Canvas is a modern, browser-based electronics circuit diagram tool designed for speed and clarity—no installs, no file management, just clean schematics you can draw, save, and share instantly.