Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Live Quantum Random Numbers launched in 2013; newer entries below may have overtaken it.

1. 1
   meQuanics▲68

   The quantum computer game

   2016 · mequanics.com.au · its alternatives →

2. 2
   A fast quantum circuit simulator▲9

   State-of-the-art quantum simulator

   2025 · qblaze.org · its alternatives →

3. 3
   Quantum Coin Flip - The most random coin flip on the internet▲23

   Hey HN! I've created a quantum coin flip demo leveraging IBM's quantum computing tech to explore true randomness. It's a primer on into how quantum mechanics can solve classical computing's randomness limitations, crucial for cryptography and secure systems. Would love your thoughts on its application and quantum computing's future role in tech!

   2024 · quantumcoinflip.com · its alternatives →

4. 4
   filippo.io/mlkem768 – Post-Quantum Cryptography for the Go Ecosystem▲315

   filippo.io/mlkem768 is a pure-Go implementation of the post-quantum key exchange mechanism ML-KEM-768 optimized for correctness and readability.

   2024 · words.filippo.io · its alternatives →

5. 5OS
   Open-Source Quantum Solver for Maximum Independent Set Problems▲6

   We’ve just released an open-source library for solving the Maximum Independent Set (MIS) problem with neutral atom quantum computing, running on both quantum processing units (QPUs) and classical hardware, thanks to emulators. This project is the result of collaboration between Pasqal, academic researchers, and industry partners, aiming to make it practical to experiment with quantum approaches to hard combinatorial optimization tasks. The MIS problem appears in real-world scenarios like scheduling, resource allocation, and network optimization, areas where classical solvers often struggle…

   2025 · its alternatives →

6. 6
   C++ Quantum Simulator written from scratch▲7

   Nov 2025 · github.com · its alternatives →

7. 7
   Play with real quantum physics in your browser▲156

   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 →

8. 8
   Quantum Game with Photons▲7

   A puzzle with photons, superposition and quantum measurement

   2017 · quantumgame.io · its alternatives →

9. 9KP
   Krotov – Python library for quantum optimal control▲6

   2019 · qucontrol.github.io · its alternatives →

10. 10
    Quantum Computing since Democritus (Scott Aaronson)▲63

    Irreverent overview of ideas in math, CS & philosophy

    2016 · cambridge.org · its alternatives →

11. 11
    Quantum Lake▲67

    Drive your cosmic fish shoals through space-time labyrinths

    2016 · apps.apple.com · its alternatives →

12. 12
    Outwitters▲57

    Asynchronous hex based strategy goodness

    2015 · onemanleft.com · its alternatives →

13. 13
    Bitcoin and Quantum Computing – a three-part research series▲6

    A three-part deep dive into quantum computing

    Apr 2026 · bitcoinquantum.space · its alternatives →

14. 14
    A tiny and platform-agnostic true random number generator for FPGA/ASIC▲27

    It is based on phase noise, consumes less than 60 LUT4s/FFs and achieves up to 7.99 bits of entropy per byte. Feel free to comment if you have any questions, ideas or thoughts :)

    2023 · github.com · its alternatives →

15. 15
    IBM Q System One▲10

    World's First Commercial Quantum Computing System

    2019 · newsroom.ibm.com · its alternatives →

16. 16
    Simple way to obtain pseudorandomness from CPU context switch in Go▲34

    Pseudorandom generator written in Go using CPU context switch - maxamel/BitGenGo

    2018 · github.com · its alternatives →

17. 17BC
    Binary Counting▲8

    2022 · bits.kodare.com · its alternatives →

18. 18
    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 · its alternatives →

19. 19
    Irrational▲7

    Infinite Non-repeating sequence generator

    2020 · theabbie.github.io · its alternatives →

20. 20TW
    The Wavefiz – Visualize the Schrödinger Equation in WebGL▲9

    Web-based quantum physics visualizer for wavefunctions and the Schrödinger Equation

    2016 · ridiculousfish.com · its alternatives →

21. 21
    Quantum Moves By Aarhus University▲4

    Play with real atoms and solve complex problems

    2016 · apps.apple.com · its alternatives →

22. 22CA
    Customizable Animated Atomic Bohr Model▲5

    2016 · acollectionofatoms.github.io · its alternatives →

23. 23PG
    Phase – Generate sounds from mathematical functions▲8

    2020 · bafs.github.io · its alternatives →

24. 24
    Visualizing the Impossible – How to Simulate Electrons▲5

    Visualizing the Impossible - Numerically Approximating the Time Dependent Schrödinger Equation for Computer Visualization

    2023 · liam-ilan.github.io · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →