Online Logic Gate Simulator

Free online logic gate simulator and digital circuit builder, and a no-signup, open-source alternative to tools like Logic.ly and Logisim. Build circuits with AND, OR, NOT, XOR, NAND and NOR gates, generate truth tables and boolean expressions, and share them with a link. Learn how it works.

Logic Nodes is a free online logic gate simulator. Enable JavaScript to build and simulate circuits, or read the feature overview and guide.