Logic / Boolean

Logic Gates

Truth tables, logic gate simulator and boolean expressions.

Input A

Input B

AND

Output

0result

0 AND 0 = 0

Truth Table

All Gates — Quick Reference (A=0, B=0)

GateSymbolExpressionThis InputDescription

Universal Gates

NAND and NOR are each "universal" — any boolean function can be built from either one alone, which is why real CPU logic is often built almost entirely from NAND gates.

Real Boolean Algebra

Every truth table here is computed live from real JavaScript bitwise operators (&, |, ^) — not hardcoded lookup tables.