Tools
Free browser tools for digital logic: build circuits, verify your logic and convert numbers — no registration, no install.
Logic Circuit Simulator
Build circuits from NAND, AND, OR, XOR gates, adders and memory right in the browser. 47 levels from wire to processor.
Truth Table Generator
Enter a Boolean formula and get the full truth table with every input combination.
Boolean Function Calculator
PDNF, PCNF, the Zhegalkin polynomial, Post classes, minimization and a Karnaugh map — with step-by-step solutions.
Number System Converter
Convert between binary, decimal and hexadecimal — with a step-by-step breakdown.
Comparisons with other projects
How Ershov Computer differs from well-known games and courses: