Boolean Logic Playground
Wire gates, toggle inputs, read the truth table. Companion worksheet →
What this is for
Add a gate from the palette, then wire it: click an output port (right side, hollow circle) then an input port (left side). Toggle the IN nodes by clicking their body. The truth-table sidebar evaluates your circuit across every input combination and highlights the row matching the inputs you have set live. NAND is functionally complete: the built-in examples show NOT, half-adder, and full-adder built from gates.