Logic Gates
Build logic circuits from switches, lamps and AND, OR, NOT, XOR, NAND and NOR gates; the app shows the truth table and the logical expression.
Free, runs in the browser, no sign-in or installation.
- Subject
- Computer Science
- Area
- Logic
- Level
- Primary and secondary school
What you can do
- Add switches, gates and lamps from the tray, connect them by dragging wires, and flip the switches to see which lamps light up.
- The truth table (for up to five switches) and the logical expression for each lamp update as you build the circuit.
- Type a logical expression and the app builds the circuit, or type two expressions and check whether they are equivalent.
- Solve eight tasks with checking and solutions, including a half adder, a full adder, a majority vote and circuits from NAND gates only.
- Choose ANSI or IEC gate symbols, show expressions with ∧ ∨ ¬, in words or in Boolean notation, and download the circuit as a PNG.
Worksheets and lessons
Lessons with worksheets that use this app.
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