Privacy

What this site keeps, and for how long.

Two things on this site can send anything: the waitlist, and the message form on the Inquire page. Everything else runs in your browser.

Last changed

In short

  • No cookies, no analytics, no trackers, and no requests to anyone else's servers while you browse.
  • The two forms are sealed in your browser. Our server stores text it cannot read.
  • The waitlist address is used once, to say Tessr has launched, and then deleted.
  • The drop box encrypts the file you give it inside your browser. The file is never uploaded or stored.
  • Proof runs the rooms engine inside your browser. It loads the engine's three files from this site, once, and sends nothing; what you type or pick stays with you.

The waitlist

You give one email address. Before it leaves your browser, it is sealed with Tessr's public key and padded so every entry is the same length. Our server checks the entry has the right shape and stores it. No IP address and no time are kept with it. Only a private key we keep offline opens it.

We use the address once, to tell you Tessr has launched, and then delete it. We never share or sell it. To come off the list before then, use Leave the list on the waitlist form with the same address.

Messages to the founders

The form on the Inquire page takes the plan you ask about, your message, and where to reply: an email address or a phone number. They are sealed in your browser the same way, and only the founders hold the key. We use them to answer you, and keep them only as long as we need to for that.

Hosting

The site runs on Vercel. Like any web host, Vercel's servers handle your IP address to deliver each page, and keep short request logs, under Vercel's own privacy policy. The fonts and images come from this site itself, so no other company sees your visit.

Earlier versions of this site

Earlier versions of this website are kept for the founders at the address /archive. Nothing on this site links to them. One of them has a small helper, T, which can pass a question on to an outside language model once your browser has swapped names, email addresses and numbers for stand ins. That version's own privacy page says how. Nothing of the kind is on the pages you reach from here.

Your rights

You can ask what we hold about you, ask us to correct it, or ask us to delete it. You can also complain to your country's data protection authority. Write to us from the Inquire page; tell us the address you used, so we can find a sealed entry once we open it.

Who is responsible

Tessr's founders, Aurimas and JJ. The legal name and address of the company behind Tessr will appear here before launch. If this page changes, the date at the top changes with it.

A question about your data?

Write to the founders. Your message is sealed in your browser before it is sent.