A fast quantum circuit simulator
State-of-the-art quantum simulator
A fast quantum circuit simulator launched on October 13, 2025 with 9 votes, #1,657 of 8,178 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
We are excited to announce the initial public release of qblaze , a new state-of-the-art open-source simulator for quantum circuits and quantum programs. qblaze is based on a sparse state vector representation. It is particularly suited for workloads that exhibit strong or even just moderate state vector sparsity, while remaining competitive with traditional state vector simulators even on dense workloads. Performance . qblaze demonstrates orders-of-magnitude improvements in overall performance against previous state-of-the-art simulators on important classes of benchmarks. Of particular note is its ability to run circuit-level implementations of Shor’s algorithm, simulating the factoring…from qblaze.org
Does a similar job
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C++ Quantum Simulator written from scratchNov 2025 · github.com · ▲7
Qoord, a simple quantum circuit simulator2024 · github.com · ▲23Hi! I built this to teach myself how a quantum circuit simulator works. It's about 1000 lines of Python, aiming to be understandable more than being fast or robust. It's not meant to compete with anything else - just a personal project to really get clear on the under-the-hood theory of qubits and quantum gates.
Qumulator – quantum circuit simulator, 1000 qubits, no GPUApr 2026 · github.com · ▲14Python client SDK for the Qumulator quantum computing API - qumulator/qumulator-sdk
Play with real quantum physics in your browser2025 · quantum.orgsoft.org · ▲156I wanted to make the simplest app to introduce myself and others to quantum computing. Introducing, Schrödinger's Coin. Powered by a simple Hadamard gate[0] on IBM quantum, with this app you can directly interact with a quantum system to experience true randomness. Thoughts? Could you see any use cases for yourself of this? Or, does it inspire any other ideas of yours? Curious what others on HN think! [0] https://en.wikipedia.org/wiki/Quantum_logic_gate#Hadamard_ga...
- LQLive Quantum Random Numbers2013 · qrand-6081.onmodulus.net · ▲5
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