Logic Circuit Lab: Logic Gates

Logic Circuit Lab is a pocket digital electronics lab. Drag gates onto a board, wire them up and watch signals flow in real time. Learn how computers think, from a single AND gate to adders, multiplexers, flip-flops and counters.

Perfect for students of CSE, EEE, ECE and physics, teachers, hobbyists, and anyone curious about how digital logic works.

LEARN STEP BY STEP
- 20 interactive lessons with live circuits: binary, NOT, AND, OR, NAND, NOR, XOR, XNOR, Boolean laws, De Morgan, universal gates, adders, MUX, decoder, latches, D and JK flip-flops, counters and K-maps
- Gate quick reference with symbols and truth tables

SOLVE 40 PUZZLE CHALLENGES
- 6 chapters: Basic Gates, Universal Gates, Real-World Logic, Arithmetic, Data Routing and Memory
- Earn up to 3 stars by using the fewest parts
- Hints when you get stuck

BUILD ANYTHING IN THE SANDBOX
- Switches, buttons, clock, constant HIGH/LOW
- Gates: Buffer, NOT, AND, OR, NAND, NOR, XOR, XNOR with 2 or more inputs
- Outputs: LED, buzzer, hex display, 7-segment display
- Blocks: half adder, full adder, MUX 2:1 and 4:1, DEMUX, decoder, encoder, comparator
- Memory: SR latch, D, JK and T flip-flops, 4-bit counter
- Pinch to zoom, undo/redo, notes, colors, auto-save
- Turn any circuit into your own reusable chip

SMART TOOLS
- Automatic truth table for any circuit
- Simplified Boolean expression (sum of products) for each output
- Expression to Circuit: type Boolean algebra, get a working circuit
- K-Map Solver for 2 to 4 variables
- Number Converter: binary, decimal, hex and octal

EXPLORE 15 READY-MADE CIRCUITS
Blinker, door alarm, half and full adder, binary to hex, counter, LED chaser, traffic light, latch, push toggle, majority vote, 4-input MUX, 2-bit adder, safe lock and parity checker.

WORKS OFFLINE, IN TWO LANGUAGES
- No account, no sign-up; your circuits stay on your phone
- English and Bengali (Bangla)

Download Logic Circuit Lab and start building your first circuit today.