How it works
How SealedIn works
Schedule a message for the future in a few minutes. Here is every step, from writing it to the moment it's opened.
Put together what you want to say
An envelope can hold any mix of:
- a letter, written in our editor, with headings, bold and lists;
- photos, uploaded from your device;
- videos, uploaded, or recorded with sound right in your browser.
There's no rush. Save it as a draft and come back to it as often as you like. Nothing is sent until you seal it.
Everything you add is kept in your library, so you can use it again in another envelope.
Dear Amara,
Recorded in the browser
One person, or everyone who should hear it
Add each person by their email address. Send one envelope to one person, or the same envelope to the whole family. Each person opens it with their own email address. People you add are saved as contacts for next time.
The day, and the minute
Pick a date and a time, down to the minute. The time you pick is your local time, as your device shows it. If someone you're sending to lives in another time zone, it reaches them at that same moment, which may be a different hour where they are.
Free envelopes can be sealed for up to 3 years. Premium envelopes, up to 25.
A heads-up, or a surprise
When you seal it, you can let them know straight away. They'll get an email saying you've sent them an envelope and when it opens, and they can watch a countdown to the day.
Or leave that off. They'll hear nothing until it arrives.
Sealed means sealed
Once an envelope is sealed, it can't be edited. That's the point: what you say now is what they'll get. We'll email you to confirm it's scheduled, and, if you sealed it more than a day ahead, remind you the day before it goes.
Changed your mind?
You can cancel any time before it's delivered. A cancelled free envelope stops counting towards your allowance straight away.
People you told it was coming are not emailed when you cancel; if they open it, they'll see it was cancelled.
- To
- Amara
- Opens
- 14 June 2041, 09:00
- From
- Mum
Sealed 16 October 2026
1 letter · 4 photos · 1 video
On the day
At the minute you chose, each person gets an email: “[Your name] sent you an envelope — it's ready to open.” Your letters, photos and videos aren't attached; they stay with SealedIn until they're opened.
We email you too, to say it's been delivered. If an email can't be delivered, we try again, and tell you if it still didn't reach someone.
What they see
The email has a button to open the envelope. They don't need an account: we email them a one-time code to check it's them. The same phone or computer remembers the envelope for 30 days.
Then the envelope opens, one page at a time: your letter, your photos, your videos, in the order you set.
It costs them nothing, and they don't need an app.
What we don't do
We don't tell you when it's been opened. Once it's theirs, it's theirs.
From SealedIn
Mum sent you an envelope — it's ready to open.
Ready when you are
Your first envelope takes a few minutes, and it's free.
Start free