logisim-evolution

Name: logisim-evolution
Brand: logisim-evolution

Free digital logic design and simulation tool

softwareStudy Toolsdigital-logiccircuit-simulatoreducation

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Our Verdict

Best for

Students and teachers needing free digital circuit design tools

Skip if

Anyone requiring analog simulation or modern UI aesthetics

What is logisim-evolution?

Logisim Evolution is an open‑source application for designing and simulating combinational and sequential digital circuits. It provides a visual, drag‑and‑drop interface that lets users build schematics with gates, multiplexers, flip‑flops, and more, then run real‑time simulations to observe signal propagation. The tool is widely used in education and hobbyist projects because it runs on any Java‑compatible platform, requires no licensing fees, and supports exporting designs to VHDL/Verilog for further hardware development.

SpecificationsAI-estimated

deploymentDesktop App

open source✅ Yes

github stars7,405

api available❌ No

support optionsGitHub Issues, community forum

primary languageJava

Key Features of logisim-evolution

Allows users to construct circuit schematics by dragging components from a palette onto a canvas.

Provides real‑time signal propagation so changes to inputs instantly update outputs.

Supports both combinational and sequential elements, including flip‑flops and registers.

Exports designs to VHDL and Verilog, enabling transition from simulation to hardware synthesis.

Runs on any system with a Java Runtime Environment, covering Windows, macOS, and Linux.

Offers a built‑in subcircuit hierarchy, letting designers create reusable modules.

Includes a built‑in truth table viewer and timing diagram for detailed analysis.

Open‑source code hosted on GitHub, allowing community contributions and custom extensions.

Use Cases for logisim-evolution

Classroom teaching

Demonstrate digital logic concepts interactively during lectures.

Student assignments

Create and test circuit designs for homework and lab work.

Prototype hardware

Model and verify logic before committing to FPGA or ASIC design.

Self‑study hobbyist projects

Explore and experiment with custom digital circuits at home.

Pros & Cons of logisim-evolution

Pros

Completely free and open source
Runs on all major desktop operating systems
Intuitive visual interface for rapid circuit building
Export to hardware description languages

Cons

Requires Java runtime, which may be an extra install step
Limited to digital logic; no analog simulation
User interface feels dated compared to modern IDEs

Frequently Asked Questions

Do I need a license to use Logisim Evolution?

No, it is released under the GPL license and can be used free of charge.

Can I run Logisim Evolution on macOS?

Yes, as long as you have a compatible Java Runtime Environment installed.

Is there support for exporting designs to FPGA tools?

Designs can be exported to VHDL or Verilog, which can then be imported into most FPGA toolchains.

Does Logisim Evolution have a command‑line interface?

It is primarily a GUI application; there is no dedicated CLI, though scripts can be used to launch the JAR with specific files.

Pricing Overview

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Free

Detailed plans are not listed. Visit the official website for pricing information.

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