Design and simulate digital circuits in a local desktop app. Logisim Revolution combines a searchable parts picker, a tabbed circuit editor, an inspector for component settings, and built-in tools for testing and analyzing logic.

It is a fork of Logisim-evolution. It keeps the familiar circuit file format and component IDs while developing its own interface and application identity.

Install

Completed manual builds are published on the Gitea Releases page. Choose the file for your operating system and CPU. A release appears only after all supported native targets have built successfully; there may be no Revolution release yet.

System	Download	Install or run
Debian/Ubuntu, x86_64 or ARM64	`.deb`	`sudo apt install ./logisim-revolution_*.deb`
Fedora/RHEL, x86_64 or ARM64	`.rpm`	`sudo dnf install ./logisim-revolution-*.rpm`
Windows x86_64	`.msi`	Open the installer and follow its prompts.
Windows x86_64, portable	`-windows-amd64.zip`	Extract the whole ZIP, then run `logisim-revolution.exe` inside it.
macOS Intel or Apple Silicon	`.dmg`	Open the disk image and copy Logisim Revolution to Applications.

These native packages include a Java runtime. The development DMGs are not notarized, so macOS may show a security warning on first launch. Snap and Flatpak files are not currently built or published for Revolution.

Portable JAR

The -all.jar release file runs on Linux, Windows, and macOS with Java 21 or newer. Download it and run, for example:

java --enable-native-access=ALL-UNNAMED -jar logisim-revolution-5.1.0dev-all.jar

Use the actual downloaded filename when the version changes. The JAR does not include a Java runtime. The -src.jar file contains source code; it is not the application launcher.

Build from source

Install JDK 21 or newer, then use the included Gradle wrapper:

git clone https://git.briggen.dev/NilsBriggen/Logisim-Revolution.git
cd Logisim-Revolution
./gradlew run

On Windows, use gradlew.bat run. To build a portable JAR locally, run ./gradlew shadowJar; to build native packages for your current operating system, run ./gradlew createAll after installing its platform packaging tools. See the developer guide and Gitea runner setup for details.

Make a first circuit

Choose New on the welcome screen. Use the parts picker search to find Pin, place two input pins, then add an AND gate and an LED.
Select the wiring tool and connect both pins to the gate inputs, then connect the gate output to the LED.
Use the poke tool to switch the inputs between 0 and 1. The LED lights when both inputs are 1.
Save your work as a .circ file. Select a component to change its settings in the inspector.

The built-in help and project background cover more concepts and examples.

What you can build

Combinational and sequential circuits, from small gates to reusable subcircuits.
Signals and displays, memory, arithmetic, TTL components, and SoC designs.
Truth tables, expression analysis, test vectors, timing diagrams, and signal logs.
VHDL components and HDL export; board and FPGA workflows where supported by your hardware and toolchain.

The editor follows the system light or dark theme by default. UI zoom can be changed independently of circuit zoom.

Files and settings

Revolution opens and saves the existing Logisim-evolution .circ format. Saved component and library identifiers are unchanged. On the first interactive launch, Revolution offers to copy compatible Evolution settings. Declining leaves Revolution on its own defaults. The two apps keep separate settings and recovery files; importing does not delete or modify Evolution's settings.

Project and contributions

Logisim was created by Carl Burch. Logisim-evolution and its contributors developed the project further; Revolution builds on that work. See the credits and source headers for attribution. The new Revolution emblem and wordmark are included under the project's GPLv3 license.