About Sealtrove
A small site for one keepsake from a big day: letters from every guest, kept sealed until a date the hosts choose.
Why it exists
Couples, shower hosts and birthday hosts often want guests to write something to be opened later. The usual answer is a box of paper cards that gets lost in a move, or a kit of envelopes passed round a table that only half the room reaches. Sealtrove puts one QR code on the table instead. Every guest writes on their own phone, from the reception or from the other side of the world a week later, and all the letters wait together in one capsule.
How it is built
The pages are static files. A small server takes each letter and keeps it in one database on Cloudflare, and it refuses to show any letter to anyone, the hosts included, before the open date. Sealed means the server will not show a letter to anyone, the host included, before the date. The hosts sign in with a passkey, so the site never holds a password, and guests need no account at all. The guest link is a long random secret, and the database keeps only a scrambled form of it.
It asks for as little as it can. A host gives no name and no email address to sign up; an email address is optional and is used only to say a capsule has opened. A guest types who the letter is from and the letter. There is no advertising, no tracking script and no data shared for marketing. PDFs are made on your own device.
Who it is for
A couple who want letters to open on their first anniversary. Friends throwing a baby shower who want letters a child can open at 18. A family marking a big birthday, a retirement or a leaving party. Anyone who wants one combined keepsake from a whole event rather than a pile of separate envelopes.
What it is not
It is not locked with a key you hold, and it makes no promise beyond what a website can keep: the letters should be downloaded once they open. It is not a chat and not a guest book; guests cannot read each other's letters. It does not send email to guests, ever. Sealtrove is not affiliated with any venue, planner, stationery brand or time-capsule service.
Install it
On a phone it can sit on your home screen like an app. On an iPhone or iPad, open the Share menu in Safari and choose Add to Home Screen. On other browsers, use Install in the menu.
Contact
Questions and problem reports go to [email protected]. A report that names the page and what you pressed is the quickest to fix.