Basic GatesBeginner
AND Gate Simulator
Output is HIGH (1) if and only if all input signals are HIGH. Explore two-input and multi-input configurations.
Principle
LaunchY = A · BDigital Logic Suite
Logic Gates & Digital Circuits Visualizer
Explore interactive truth tables, boolean algebra, and digital signal flow for AND, OR, NOT, NAND, NOR, XOR, and XNOR gates.
7interactive labs
Basic GatesBeginner
OR Gate Simulator
Output is HIGH (1) if at least one input signal is HIGH. Test inclusive OR logic against live truth tables.
Principle
LaunchY = A + BBasic GatesBeginner
NOT Inverter Gate
Inverts input logic level: turns HIGH into LOW (0) and LOW into HIGH (1). Fundamental digital signal negation.
Principle
LaunchY = A'Universal GatesIntermediate
NAND Universal Gate
Universal logic gate capable of constructing any boolean function. Output is LOW only when all inputs are HIGH.
Principle
LaunchY = (A · B)'Universal GatesIntermediate
NOR Universal Gate
Universal logic gate that outputs HIGH only when all inputs are LOW. Explore De Morgan's dual construction.
Principle
LaunchY = (A + B)'Arithmetic GatesIntermediate
XOR Exclusive-OR Gate
Outputs HIGH if an odd number of inputs are HIGH (inequality detector). Essential for binary adders and parity.
Principle
LaunchY = A ⊕ B = A'B + AB'Arithmetic GatesIntermediate
XNOR Equivalence Gate
Outputs HIGH when both inputs are identical (equality comparator). Fundamental for binary equality checks.
Principle
LaunchY = (A ⊕ B)' = AB + A'B'Subtopic features
Interactive switch manipulation
Toggle binary inputs with instant output rendering and signal flow animations.
Live truth table highlighting
Watch active input states highlight in real time across the full truth table matrix.
Curriculum aligned digital logic
Structured alongside CBSE CS Class 11 Boolean Logic and AP Computer Science Principles.
Investigation Protocol
How to Simulate Logic Gates & Truth Tables Online
Follow this standardized experimental methodology to configure parameters, simulate processes, and record scientific telemetry.
1
Select Logic Gate or Universal Circuit
Choose between basic gates (AND, OR, NOT), universal gates (NAND, NOR), or arithmetic gates (XOR, XNOR).
Scientific Protocol
2
Toggle Binary Inputs (0 / 1)
Click interactive input switches to change binary voltage levels and observe immediate digital output state updates.
Scientific Protocol
3
Inspect Synchronized Truth Table
Watch the active truth table row highlight dynamically matching your real-time switch configuration.
Scientific Protocol
4
Verify Boolean Theorems & Export
Validate De Morgan's laws, Karnaugh map minimizations, and export circuit logic state diagrams.
Scientific Protocol
Computational Foundations
Boolean Logic Theorems & Combinational Models
Exact truth table evaluations and topological netlist propagation models executed in real time.
Curriculum Standards
Digital Logic & Boolean Algebra Educational Standards
Our interactive logic gate simulators follow CBSE Computer Science Class 11 (Boolean Logic & Circuits), AP Computer Science Principles (Binary & Logic), and undergraduate Digital Circuit Design (ECE/CS).
Students build solid foundations in binary boolean operations, canonical sum-of-products (SOP), and universal gate construction before moving on to full CPU architectures.
Signal Telemetry
Inspect binary voltage states, propagation delays, and gate fan-out in real time.
Frequently Asked Questions
Technical and curriculum details about logic gates & digital circuits.
Why are NAND and NOR called universal logic gates?
NAND and NOR gates are functionally complete, meaning any boolean logic function or digital circuit (AND, OR, NOT, XOR, adders, latches) can be constructed solely using interconnected NAND or NOR gates.
How does the XOR gate function in binary arithmetic?
The XOR (Exclusive OR) gate acts as a binary 1-bit adder: it produces a Sum of 1 when either input is 1, and 0 when both inputs are 0 or 1. Coupled with an AND gate (for the Carry bit), it forms a fundamental Half Adder.
Can I combine multiple logic gates into custom circuits?
Yes. OpenLabs provides combinational circuit modules where you can wire gates together to create half adders, full adders, multiplexers, and SR latches.
Is the OpenLabs Logic Gates simulator free for schools?
Yes. All logic gate modules, truth tables, and circuit simulators are 100% free with no account requirements.