Privacy

This is a numerical simulator. It has no accounts, no logins and no advertising, and it sets no tracking cookies.

What is stored, and for how long

Your simulation runs

The parameters you submit (grid size, boundary temperatures, diffusivity and so on) are passed to the solver. Each run's output is written to its own database file on the server, named by a random run identifier, and is deleted automatically once it passes the retention window — 24 hours by default. Nothing ties a run to a person: the identifier is random and is not linked to you.

Your run history

The History tab is stored in your own browser using localStorage. It never leaves your device and the server cannot read it. Clear History on that tab deletes it, as does clearing site data in your browser.

Server request logs

Like any web server, this one records ordinary request logs, which can include IP addresses. They are used to keep the service running and to apply rate limits, not to build a profile of anyone. The rate limiter holds a request count per IP in memory only; it is lost when the server restarts.

Analytics

If analytics is enabled on this deployment it is a cookieless, aggregate-only measurement: page counts and referrers, with no cookies, no cross-site identifiers and no attempt to recognise individual visitors. That is why this site shows no cookie consent banner — there is nothing to consent to.

What is not done

No accounts, no email addresses, no advertising or tracking cookies, no third-party trackers, no sale or sharing of data, and no profiling of individual users.

Contact

This is an open-source research and teaching tool. Questions about it belong in the project's issue tracker.