Dev tools · alternatives · 2026
24 alternatives to QOSim
Build,Simulate-Understand Quantum Computing Visually
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Hi! 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.
2024 · github.com · its alternatives →
- 2
Python client SDK for the Qumulator quantum computing API - qumulator/qumulator-sdk
Apr 2026 · github.com · its alternatives →
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- 5AQ
2019 · qml.entropicalabs.io · its alternatives →
- 6
Simulate reverse causality using quantum suicide. Contribute to karldray/quantum development by creating an account on GitHub.
2016 · github.com · its alternatives →
- 7
Quantum computing in your browser.
2020 · quantumjavascript.app · its alternatives →
- 8QA
2017 · anchovieshat.github.io · its alternatives →
- 9
Arduino▲111Dual-brain edge AI computer by Qualcomm and Arduino
2014 · arduino.cc · its alternatives →
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Qelm ▲6More Meaning per Qubit, Run Quantum‑Inspired NLP on CPU/GPU.
2025 · github.com · its alternatives →
- 12
Nov 2025 · github.com · its alternatives →
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- 14
Q3AS, deployment & execution of quantum algorithms by Aqora
2024 · aqora.io · its alternatives →
- 15
I built qqqa as an open-source project, because I was tired of bouncing between shell, ChatGPT / the browser for rather simple commands. It comes with two binaries: qq and qa. qq means "quick question" - it is read-only, perfect for the commands I always forget. qa means "quick agent" - it is qq's sibling that can run things, but only after showing its plan and getting an approval by the user. It is built entirely around the Unix philosophy of focused tools, stateless by default - pretty much the opposite of what most coding agent are focusing on. Personally I've had the best experience…
Nov 2025 · github.com · its alternatives →
- 16
I built a tiny 8-bit CPU simulator in Python to better understand how computers work at a low level. It visualizes registers, memory, and instructions in real-time, so you can actually see each operation as it happens. You can write simple assembly code and watch how the CPU executes it step by step. The project is mainly for learning and experimentation, but I’d love feedback or ideas for improvement.
Oct 2025 · github.com · its alternatives →
- 17
I 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...
2025 · quantum.orgsoft.org · its alternatives →
- 18
Integrate quantum circuit into any pygame-based games.
2025 · its alternatives →
- 19
The chain reaction game about saving Quantum space on iOS.
2016 · apps.apple.com · its alternatives →
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Hi HN, I turned the freshly published paper “The Constructor Theory of Time” by David Deutsch and Chiara Marletto (arXiv, 13 May 2025) into an executable Python library. What you’ll find • One-to-one translation of the paper’s formalism: Substrates, Attributes, Tasks, Constructors, and task-algebra operators • Possibility / impossibility predicates and counterfactuals encoded exactly as defined • Test suite that mirrors every lemma and example (>95 % coverage, mypy-typed) • Reproductions of key results: time-keeping substrates, irreversibility proofs, quantum branching tasks, and a…
2025 · github.com · its alternatives →
- 22
QLogic▲8Enter the world of quantum computing with exciting puzzles!
2020 · play.google.com · its alternatives →
- 23
Run Quantum Simulations with Zero Quantum Knowledge.
Dec 2025 · feynmanhq.com · its alternatives →
- 24
A digital logic simulation written in C. Contribute to rzscheck/logic development by creating an account on GitHub.
2020 · github.com · its alternatives →
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