Cipher Wheel
Manually encode or decode words using the rotation wheel.
Launch ToolVigenère Square
Grid-based substitution with customizable keys.
Launch ToolUniversal Translator
Bidirectional live encryption tool.
Launch ToolBinary Game
Toggle the light bulbs to build binary numbers — or read the lights and give the decimal. Two modes, two difficulties, timed challenge or relaxed practice.
Play GamePassword Checker
Test how strong a password is — see crack times, dictionary checks, and tips. Don't use real passwords!
Launch ToolLogic Gate Simulator
Build real circuits! Drag AND, OR, XOR, and NOT gates onto a canvas, wire them together, and toggle inputs to see logic in action.
Launch Simulator