Interactive Quantum Circuit Simulator Online
Build quantum circuits visually and explore their simulated states, measurement probabilities and Bloch sphere representations with Quortup in your browser.
Visual Drag & Drop Grid
Place single-qubit rotations (H, X, Y, Z, S, T) and multi-qubit entangling gates (CNOT, CZ, SWAP, Toffoli) on an intuitive timeline grid with real-time state calculation.
Exact Statevector Simulation
Compute 2ⁿ complex probability amplitudes in real time. Inspect exact phases, probability distributions, and purity metrics at every circuit step.
Multi-Qubit Bloch Spheres
Visualize individual qubit projections simultaneously on 3D Bloch spheres. Track state transitions dynamically as gates are positioned.
q[0]: ──[ H ]──────■───────[ M ]── => |00⟩: 50.0% probability (Phase 0.0°)
│
q[1]: ─────────────■───────[ M ]── => |11⟩: 50.0% probability (Phase 0.0°)
Result: Maximally entangled Bell State |Φ⁺⟩ = (|00⟩ + |11⟩) / √2
Export Formats: Qiskit 1.0+ · OpenQASM 2.0 / 3.0 · Quortup JSON
Why Engineers & Students Choose Quortup
Traditional quantum simulators often require setting up local Python virtual environments, compiling C++ extensions, or installing heavy dependencies. Quortup runs entirely in your web browser with zero configuration.
Whether you are testing algorithmic correctness for Shor's Algorithm or introducing students to Bell Inequalities, Quortup provides instant feedback with mathematically precise unitary matrix calculations.
Frequently Asked Questions
Is Quortup free to use?
Yes. Quortup provides 100% free public access to the visual circuit builder, statevector simulator, and educational modules.
Can I export my circuits to Qiskit?
Yes. Every circuit you construct in Quortup can be copied directly as standard Python Qiskit code or OpenQASM format for running on cloud backends.
How many qubits can I simulate online?
Quortup simulates up to 16 qubits directly in the client browser with high speed statevector calculation and shot based measurement sampling.