QubitFlow Run the example
Privacy

No accounts. No cookies. No analytics.

QubitFlow is a set of static files. What you enter is processed in your browser and is not sent to a QubitFlow server, because there is none. This page sets out the details.

Describes the site as built on 2026-10-11

01What happens on your device

  • The jobs, costs, values and budget you enter are processed by JavaScript in your browser tab, in Web Workers. They are not transmitted anywhere.
  • QubitFlow sets no cookies and includes no analytics, advertising or tracking scripts.
  • The lab remembers one preference, your light or dark theme, in your browser’s local storage under the key qubitflow-theme. Clearing site data removes it.
  • If you switch on the optional AI, your browser stores the downloaded model files (roughly 260–290 MB) in its cache storage so they need not be downloaded again. You can remove them by clearing this site’s data in your browser settings.

02Hosting

The site is served as static files by Cloudflare. Like any web host, Cloudflare processes standard request information, such as your IP address and browser type, to deliver and protect the site, under its own privacy policy. QubitFlow has not enabled any analytics product. A strict Content-Security-Policy stops the page from contacting any other site except the ones listed below.

03The optional AI

Nothing is downloaded from third parties unless you press Enable live AI in the lab. If you do, your browser fetches:

  • model and tokenizer files from huggingface.co and its content-delivery network (*.hf.co);
  • the ONNX Runtime WebAssembly engine from cdn.jsdelivr.net.

Those services receive your IP address and standard request headers when your browser downloads the files, under their own privacy policies. The sentences you type for the model are processed on your device and are not sent to them, or to anyone else.

A share link stores the inputs and settings in the part of the address after #. Browsers do not send that part to the server, but anyone you give the link to can read it. Exported run files are created in your browser and saved wherever you choose; QubitFlow never receives them.

05Questions

QubitFlow does not collect personal data itself, so it holds nothing about you to access or delete. Requests about request logs kept by the host should go to Cloudflare.