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Circuit Netlists

3rd April 2019

Circuits created using the Web Editor can now be viewed or exported as a circuit netlist.

Netists describe how components in a circuit are connected together, and are commonly used for circuit analysis, simulation and PCB design.

The circuit details page also shows a rendered view of the circuit with each of the netlist nodes marked on the circuit visually.

Netlist nodes

The above circuit is represented by the following netlist:

V1 1 0 5
R2 2 0 220
R3 1 2 220
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Visual Studio Code Extension

7th May 2018

Build custom components in Visual Studio Code with the new VS Code extension.

As an additional option to using, you can now use Visual Studio Code to create and edit custom components.

The extension is currently available as an early preview. It provides the following features:

  1. Show component syntax errors in the VS Code editor
  2. Render a preview that can be viewed in VS Code


Continue reading

Circuit Simulation

7th April 2018

Simulate your circuits using the new simulation functionality in the web editor.

Simulate button

After clicking the simulate button, you will be presented with a snapshot of the simulated version of your circuit. This displays the voltages at all of the connection points in your circuit, and any components with dynamic behaviour will be rendered appropriately. For example, the Lamp will be lit if there is a voltage difference across it, and the 7 Segment Display will illuminate to show the input number.

Please be aware that this is a preview service and currently only supports a limited number of components. You might also experience some circuits that cannot be simulated while we are still working on improving this new feature.

Below is a copy of the simulation output from the Simulation Demo circuit:

Simulation results Continue reading

New Web Editor

26th March 2018

The web-based version of Circuit Diagram has been redesigned and is now available to use. The new and improved features are:

  • Improved interface
  • Undo/redo functionality
  • More components
  • Larger document size
  • Improved property editing
  • More download options including PNG and SVG

You can share links to circuits, and publish them on the circuits section.

Web editor

Get link will provide a link to your circuit without listing it in the circuits directory.

Publish will make your circuit available for others to view in the circuits section.

Continue reading

Circuit Diagram Web Editor

9th June 2016

Design circuit diagrams online in your browser using the new web editor.

The web editor can open and save circuit document files that are compatible with the desktop version of Circuit Diagram, and can export SVG images.

Circuit Diagram Web Editor

Start using the new web editor here.

Circuit Diagram 3.1 Released

17th August 2015

This release adds a search feature to the toolbox to enable components to be found more quickly.

Open the search box by clicking the search symbol in the toolbox, or pressing the Q button on the keyboard.

Begin typing the name of the component you would like to use, and press Enter as soon as you see it. There is no need to type the entire component name.

Cancel and close the search box by pressing Esc on the keyboard.

Toolbox search

Download Circuit Diagram 3.1 here.

Circuit Diagram 3.0 Released

7th August 2015

New in this release:

  • New UI
  • Support for per-monitor DPI scaling on Windows 8.1+
  • Hi-DPI component icons
  • Faster start-up time
  • Export to XPS format
  • More pins for Integrated Circuit component
  • Custom text for Capacitor component
  • Choose update channel in 'About' dialog
  • Bug fixes

Download Circuit Diagram 3.0 here.

Online Component Editor

14th April 2015
The new Component Editor for Circuit Diagram
The new Component Editor for Circuit Diagram

Create custom components for Circuit Diagram using the new online Component Editor.

Choose a component template as a starting point, then you can:

  • View a preview of the component
  • Quickly find and locate any syntax errors
  • Compile component binary format online
  • Choose an icon for each configuration

The component compiler website should make designing custom components much easier. Once finished, you can always upload them for others to use here.

Try it now at

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