Alternatives

Products that do what C++ Quantum Simulator written from scratch does

1. 1QJ
   Quantum JavaScript▲210

   2020 · quantumjavascript.app

2. 2AF
   A fast quantum circuit simulator▲9

   Oct 2025 · qblaze.org

3. 3TM
   Turing machine simulator in C▲38

   2015 · github.com

4. 4QS
   Quantum suicide in Python▲151

   2016 · github.com

5. 5AH
   A Hand-Drawn QR Code Alternative▲270

   2015 · meshtag.com

6. 6TA
   Toy – A thin C++ game engine▲180

   2018 · hugoam.github.io

7. 7IC
   Introducting C+▲148

   2012 · github.com

8. 8QG
   Quantum Game with Photons▲86

   2017 · quantumgame.io

9. 9SB
   Simulation-based high school physics course notes▲295

   2020 · landgreen.github.io

10. 10CA
    Crown – A flexible game engine written from scratch in C++▲193

    2017 · github.com

11. 11FA
    Finite Automata Simulator Written in QT/Graphviz▲15

    2015 · github.com

12. 12AQ
    A Quantum Perceptron – First Steps in QML▲65

    2019 · qml.entropicalabs.io

13. 13NA
    NasNas, a new intuitive and user friendly C++ game framework▲95

    2020 · github.com

14. 14A2
    A 2D Physics Simulator in JavaScript▲126

    2017 · htmlpreview.github.io

15. 15BY
    Build your own programming language in C++▲94

    2021 · github.com

16. 16CA
    Cat, a C++14 functional library▲34

    2015 · cat.github.io

17. 17FA
    forthy2 – a higher level Forth-remix in C++▲65

    2019 · github.com

18. 18QA
    Qoord, a simple quantum circuit simulator▲23

    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

19. 19LQ
    Learn quantum programming in short, simple lessons▲10

    2018 · demo.quantumlab.cc

20. 20HA
    Hardware-agnostic library for near-term quantum machine learning▲8

    2018 · github.com

21. 21FM
    Fast Monte Carlo Permutation Simulator in C▲28

    2013 · github.com

22. 22OS
    Open-source SIMD-accelerated math library for C/C++/C#/Java/FORTRAN▲9

    2013 · yeppp.info

23. 23TF
    The First Quantum Algorithm▲6

    2019 · madeddu.xyz

24. 24ZP
    Zero-power photonic language model–code▲18

    The model uses a 1024-dimensional complex Hilbert space with 32 layers of programmable Mach–Zehnder meshes (Reck architecture) and derives token probabilities directly via the Born rule. Despite using only unitary operations and no attention mechanism, a 1024×32 model achieves coherent TinyStories generation after < 1.8 hours of training on a single consumer GPU. This is Part 1 - the next step is physical implementation with $50 of optics from AliExpress.

    Nov 2025 · zenodo.org

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