Free Online Logic Circuit Designer and Visualizer - Draw Circuits Easily

Bring your digital logic ideas to life with our free online circuit builder. Ideal for learning, teaching, or rapid prototyping, it lets you design and visualize professional circuits directly in your browser. No downloads, installations, or accounts required—just open and start building.

Logic circuit simulator overview image

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Want to Add an Interactive Diagramming Experience to Your App?

Enhance your app with our powerful Diagram component for creating and customizing flowcharts, BPMN diagrams, org charts, mind maps, and more—all within your application.

Why Use Our Online Logic Circuit Designer?

Whether exploring digital fundamentals or prototyping advanced designs, enjoy a smooth, distraction-free experience with ready-to-use elements, intuitive wiring, and real-time feedback. No software, no setup—just pure productivity.

Explore More Free Online Diagramming Tools

These intuitive visual tools help developers, designers, and professionals brainstorm, plan, and communicate ideas effectively. Whether mapping concepts, designing layouts, or building logic flows, these tools make it easy to bring ideas to life.

Frequently Asked Questions

Absolutely! It's free for both personal and commercial use.
No account is needed, just open the tool and start building.
Yes, you can export circuit designs in PNG, SVG, or JPEG formats.
Chrome, Firefox, Edge, and Safari support the circuit simulator.
Yes! The logic circuit simulator tool provides instant feedback as you build.
There are no limits. You can design as many logic circuits as you need.
No, your data stays local unless you choose to save or share it.
Absolutely! You can zoom in, zoom out, and pan effortlessly.
Yes! You can cut, copy, paste, delete, and rotate components to fine-tune your logic circuit easily.

Trusted by the Industry, Recognized
for Excellence

We don’t just say we’re great—independent awards and industry leaders back it up.
We are honored to be recognized for our product innovation, customer support, and overall excellence by top organizations worldwide.

Syncfusion Awards