Show HN: Web app that lets you send email time capsules
by walrussama on 12/8/2025, 11:37:22 AM
I had an issue where I would journal stuff, and then never look at what I wrote. So I thought it'll be cool to schedule something that will get sent to you at a later time (like a time capsule). Also, was inspired by futureme, where you can send yourself letters that'll arrive in the future.
Comments
by: yakkomajuri
I think Futureme "letters" are actually emails, no? Or at least they do both. I've sent my future self emails via Futureme (and they called it a "letter" on the email). Nevertheless, this is still cool, congrats OP!<p>I highly recommend people try this exercise. I got an email this year which I sent myself five years ago. It was tiny, and still mind-blowing.
12/8/2025, 1:24:45 PM
by: Jach
This reminded me of a more whimsical old service that used real snails to send email at some indeterminate time. Looks like their home page is still up but it's totally defunct: <a href="http://www.realsnailmail.net/" rel="nofollow">http://www.realsnailmail.net/</a> The only message I sent with it (or at least that made it through, maybe I sent more that I don't remember) was initiated in June 2008, at last collected by a snail in May 2011, and the snail Marko delivered it in August 2011.
12/8/2025, 12:33:57 PM
by: Nathanba
Gmail has this feature built in, you can plan the sending of an email for a later point in time.
12/8/2025, 12:24:14 PM
by: leshenka
I hear about time capsule apps from time to time and my main concern about them is longevity.<p>Will this application exist in say 10 years from now? 20? And even then will I be using the same email by then?
12/8/2025, 12:15:12 PM
by: emrekzd
This is very cool and makes me smile because I used to use a simplified version of this as a take home project in engineering interviews.<p>One usecase I find particularly interesting is predictions. People often predict the future like “in 2 years we will have AGI” etc. It would be fun to fact check these predictions on the exact date 2 years later. Pick top tech leaders or politicians and scrape all their predictions and make a leaderboard of who got it right or messed up. could be fun to try.
12/8/2025, 12:12:56 PM
by: munro
just use a calendar event, it's more robust, and gives you the same feeling of 'oh yea...'
12/8/2025, 12:30:57 PM
by: hrimfaxi
You might like Diarium, a local-first journaling app that will bring up past entries a year later. Since journalling is private, not everyone is comfortable sharing with an email provider.
12/8/2025, 12:54:55 PM