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Life & fun · alternatives · 2026

24 alternatives to 1-qubit quantum circuit simulator with interactive bloch sphere

This has been a small labour of love for a few days. Just a fun idea I had to create a single qubit quantum circuit simulator with interactive 3D bloch sphere. Check out my blog post linked on the page for further introduction to quantum computing!

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. 1-qubit quantum circuit simulator with interactive bloch sphere launched in 2024; newer entries below may have overtaken it.

  1. 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. 2

    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 →

  3. 3

    This is a little toy project of mine that lets you simulate digital logic graphs. It was inspired by Minecraft's Redstone and the Piet esolang. It's got some serious drawbacks-- you write circuits as PNGs and simulate them with a Python interface. It's slow to run and slow to experiment with. And it is certainly difficult to use for people with any kind of color blindness. But despite that, I hope this can still be a fun toy!

    2022 · github.com · its alternatives →

  4. 4

    Inspired by games like Turing Complete/Virtual Circuit Board/Logic World, I tried to make a mix of aseprite and wiredworld/wired-logic, the idea being the user can build a digital circuit using a "fullstack" pixelart creation workflow. The circuit is just an image. The primitives are (i) connected wires which have undefined, 0 or 1 state during simulation (displayed brighter or darker in function of the state) and (ii) NANDs, which are little pixel triangles. During simulation the user can interact with any wire by clicking on it, toggling its state, which is cool for messing…

    2024 · github.com · its alternatives →

  5. 5

    Amazon's first quantum computing chip

    2025 · aboutamazon.com · its alternatives →

  6. 6
    I built a synthesizer based on 3D physicsfree tier, from $99/mo▲512

    I've been working on the Anukari 3D Physics Synthesizer for a little over two years now. It's one of the earliest virtual instruments to rely on the GPU for audio processing, which has been incredibly challenging and fun. In the end, predictably, the GUI for manipulating the 3D system actually ended up being a lot more work than the physics simulation. So far I am only selling it direct on my website, which seems to be working well. I hope to turn it into a sustainable business, and ideally I'd have enough revenue to hire folks to help with it. So far it's been 99% a solo project, with…

    2025 · anukari.com · its alternatives →

  7. 7
    BlueQubit▲109

    The simplest way to access a quantum computer

    2023 · app.bluequbit.io · its alternatives →

  8. 8

    Intuitive user interfaces for quantum computing - make it an accessible & business-available technology. We aim to build the standard for interaction with quantum systems.

    2017 · quantumgame.io · its alternatives →

  9. 9

    Python client SDK for the Qumulator quantum computing API - qumulator/qumulator-sdk

    Apr 2026 · github.com · its alternatives →

  10. 10

    State-of-the-art quantum simulator

    2025 · qblaze.org · its alternatives →

  11. 11
    Qu ▲312

    Learn, invent and innovate electronics

    Dec 2025 · qumaker.com · its alternatives →

  12. 12IB
  13. 13

    The quantum computer game

    2016 · mequanics.com.au · its alternatives →

  14. 14

    Quantum computing in your browser.

    2020 · quantumjavascript.app · its alternatives →

  15. 15

    The chain reaction game about saving Quantum space on iOS.

    2016 · apps.apple.com · its alternatives →

  16. 16
    QU3▲133

    Quantum-safe MCP servers for private, verifiable inference

    2025 · its alternatives →

  17. 17
    QMsolve▲72

    Visualizing quantum physics with Python

    2021 · github.com · its alternatives →

  18. 18

    Integrate quantum circuit into any pygame-based games.

    2025 · its alternatives →

  19. 19

    A pretty simple but fun to play with simulator for a concept from mathematical physics called the "2D Coulomb gas". I originally made this for my Bachelor's thesis to create pretty pictures and build intuition but have recently gotten it a fresh coat of paint and better performance curtesy of WebGPU acceleration (ported with liberal help from Codex to get through all of the boilerplate). Play around with it - hopefully read up more on the 2D Coulomb gas because it is an incredibly deep topic research wise.

    Feb 2026 · simonhalvdansson.github.io · its alternatives →

  20. 20
    Qubit▲11

    Qubit - Qubit Tester

    2025 · github.com · its alternatives →

  21. 21AS

    I really like the look of the famous album art for Unknown Pleasures [1]. It was originally created by Harold Craft at the Arecibo Observatory from the signals of the first discovered radio pulsar [2]. I made a spectrogram that produces a similar look. It runs FFT in Rust and visualizes it with WebGL. [1]: https://en.wikipedia.org/wiki/File:UnknownPleasuresVinyl.jpg [2]: https://en.wikipedia.org/wiki/PSR_B1919%2B21

    2024 · aestuans.github.io · its alternatives →

  22. 22PW
  23. 23UT

    2024 · daniellowengrub.com · its alternatives →

  24. 24
    QOSim▲7

    Build,Simulate-Understand Quantum Computing Visually

    2025 · its alternatives →

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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 →