Logic Gate Simulator

Choose a logic gate, click on inputs to change their state, and observe the output.

Choose a Gate:

Output

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Select a logic gate from the dropdown menu (AND, OR, NOT, NAND, NOR, XOR, XNOR).
Click on the input light bulbs to toggle their state between 0 (off/gray) and 1 (on/yellow).
The output light bulb automatically updates based on the selected gate and input values.
View the truth table below the simulator to see all possible input/output combinations for the selected gate.
Click "Reset Inputs" to set all inputs back to 0 (off state).
NOT gate has only one input, while all other gates have two inputs.