CircuitVerse - Platform which allows users to construct digital logic circuits online

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CircuitVerse is a free, open-source platform which allows users to construct digital logic circuits online. Design circuits quickly and easily with a modern and intuitive user interface with drag-and-drop, copy/paste, zoom, and more. It supports multi bit-wires, this means circuit design is easier, faster, and uncluttered. It can automatically generate circuit based on truth table data.



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LogicCircuit – is educational software for designing and simulating logic circuits. Intuitive graphical user interface, allows you to create unrestricted circuit hierarchy with multi bit buses, debug circuits behavior with oscilloscope, and navigate running circuits hierarchy.

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  •    Java

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migen - A Python toolbox for building complex digital hardware

  •    Python

Despite being faster than schematics entry, hardware design with Verilog and VHDL remains tedious and inefficient for several reasons. The event-driven model introduces issues and manual coding that are unnecessary for synchronous circuits, which represent the lion's share of today's logic designs. Counter- intuitive arithmetic rules result in steeper learning curves and provide a fertile ground for subtle bugs in designs. Finally, support for procedural generation of logic (metaprogramming) through "generate" statements is very limited and restricts the ways code can be made generic, reused and organized. To address those issues, we have developed the Migen FHDL library that replaces the event-driven paradigm with the notions of combinatorial and synchronous statements, has arithmetic rules that make integers always behave like mathematical integers, and most importantly allows the design's logic to be constructed by a Python program. This last point enables hardware designers to take advantage of the richness of the Python language - object oriented programming, function parameters, generators, operator overloading, libraries, etc. - to build well organized, reusable and elegant designs.

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  •    CSharp

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qsim - Schrödinger and Schrödinger-Feynman simulators for quantum circuits.

  •    C++

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escher - Escher: A language for programming in metaphors

  •    Go

Escher is a simple syntax for representing generic labeled graphs called circuits, much like XML is a (not-so-simple) syntax for representing generic labeled trees.Escher graphs can also be interpreted as executable circuits of independent processing units. In this way, Escher circuits (used as code) can manipulate Escher circuits (representing data), thus achieving linguistic uniformity between algorithm and data.

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Qiskit is an open-source framework for working with noisy quantum computers at the level of pulses, circuits, and algorithms. Qiskit is made up of elements that each work together to enable quantum computing. This element is Aer, which provides high-performance quantum computing simulators with realistic noise models.

Cirq - A python framework for creating, editing, and invoking Noisy Intermediate Scale Quantum (NISQ) circuits

  •    Python

Cirq is a Python library for writing, manipulating, and optimizing quantum circuits and running them against quantum computers and simulators. Follow these instructions.

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  •    Python

SKiDL is a module that allows you to compactly describe the interconnection of electronic circuits and components using Python. The resulting Python program performs electrical rules checking for common mistakes and outputs a netlist that serves as input to a PCB layout tool.

qmasm - Quantum macro assembler for D-Wave systems

  •    Python

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Schematic 3D

  •    C++

Schematic3d depicts analog circuits in three dimensional space. Third dimension for circuit element is added based on the voltage. It generates animation for transient simulation. (Values of voltages are taken from PSPICE software).


  •    DotNet

The Weazel project consists of a set of tools to support design of integrated circuits using the Gezel language. The current release version constain among others a simulator, a VHDL-code generator and an integrated development environment. All tools support the version 1.7 of...

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Quite Universal Circuit Simulator

  •    C++

Qucs is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported.


  •    C

IMPRESSOLIBRE is a project for development of low cost electronic circuits, with GPL license, to allow free uses, modifications and improvements of the circuits.

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