Zero prerequisites · Jump right in
Explore
Skip the lessons. These are the same interactive widgets used throughout the site, but unlocked and unguided. Play, poke, and build intuition.
Qubit
Bloch Sphere
Drag the sliders, jump between named states, watch the amplitude clocks update. The single-qubit playground with no lesson in the way.
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Gates
Gate Playground
A single qubit and a row of gate buttons. Click to apply H, X, Y, Z — watch the Bloch sphere react. See the state vector and probabilities update in real time.
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Math
Complex Numbers
Understand the magnitude-and-phase picture that makes qubits possible. Drag the sliders and see both polar and Cartesian forms at once.
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