Connect the pieces.
AND, OR and XOR gates, flip-flops, clocks and tri-state buffers. Choose a component, set its parameters and connect a wire.
COMPONENT LIBRARY YOUR DIGITAL LOGIC WORKBENCH V.0.17.1
Logic gates simulator.
Your circuit workbench.
From your first gate to your own calculator.
Build circuits, connect signals and see what happens.
Half adder.lfgDemo project
CircuitSelectConnections Simulation running
SUM 1
CARRY 0
Click A or B to see the result.
Interactive demo · click the inputs0 + 1 = 01
01 NATIVE WINDOWS APPLICATION02 WORKS OFFLINE03 20 BUNDLED EXAMPLES04 CUSTOM IC CIRCUITS
LESS GUESSWORK. MORE DISCOVERY.Your circuit.
Your circuit.
Everything in view.
Drag components onto the canvas, connect pins and run the simulation. Signals, memory states and waveforms help you understand every step.
LOGICFORGE / NATIVE WINDOWS APP READY TO WORK
Actual application screenshotGrid. Connections. Full control.
CLEAR IDEAS. PRECISE TOOLS.From a single bit
From a single bit
to a bigger design.
Explore the basics or build complex projects. Every component has its place.
See the relationships.
Run the simulation or advance one step at a time. Track 0, 1, X and Z states and inspect waveforms in the logic analyzer.
SIMULATION AND WAVEFORMSMake it a component.
Turn part of your circuit into a custom IC. Reuse it, combine modules and inspect their internals.
CUSTOM INTEGRATED CIRCUITSNEW IN VERSION 0.16Two project types.
Two project types.
One workbench.
Choose digital logic or electrical circuits. Resistors, capacitors, inductors, diodes, NPN/PNP transistors and power sources have their own library with voltage and current readings.
DC and transient analysis · 0.1 ms stepsEducational models · 25°C
START WITH A WORKING CIRCUITOpen. Modify.
Open. Modify.
Understand.
20example projects
included in setup
included in setup
A small calculator.
Plenty to discover.
A keypad, full adders and 8-bit RAM inside one IC. Enter 7, add 5 and trace how the result becomes 12.
YOUR FIRST STEP↙
01Half adder
Two gates. The basics of addition.
8-bit RAM
Write a byte and read it back.
Clock and flip-flop
See how a circuit responds to time.
CALC-8 calculator
Connect everything into a working circuit.
Open .lfg files in LogicForge.
All examples: ☰ → Example circuits
NEW IN VERSION 0.14A good start.
A good start.
Step by step.
Choose a project on Home, return to recent files or follow a tutorial with highlighted controls.
All your projects within reach.
New projects, recent files and ready-made examples in one place.
Nine steps to your first circuit.
Highlighted components and short instructions. Experiment at your own pace.
YOUR NEXT PROJECT STARTS HEREMake room
Make room
for a great idea.
LogicForge for Windows. The application, .NET runtime and example circuits in one installer.
Ready for Windows.
No separate .NET installation needed. Once installed, work without an internet connection.
Download for Windows—Installer downloads
EXE installer · 202 MBDirect download.
GOOD TO KNOWA few more
A few more
bits.
Do I need internet access?
To download the installer, yes. LogicForge itself works offline: designing, simulating and saving projects require no connection.
Which operating systems are supported?
The current version supports Windows 10 and Windows 11 on x64. The installer includes the required .NET runtime.
How do I get started?
Open ☰ → Example circuits and choose the half adder. Press Play, change the inputs and watch sum and carry. Then explore RAM or the calculator.
Can I create custom integrated circuits?
Yes. Select a circuit section with inputs and outputs, then create an IC. Reuse it and double-click to inspect its internals.
How do I save and share a project?
Save it as an .lfg file. The project contains the circuit and its IC definitions. Share the file so someone else can open it in LogicForge.
Simulate. Learn. Build.
Try individual logic gates in your browser, learn how addition and memory work, or download the full circuit editor for Windows.