Hey HN. I was always a huge fan of Reddit's RemindMe! bot and wanted to have something like that outside of Reddit, so I finally built it!
You can try it here: https://mailreminder.net/
I looked around before I started making it myself - there are a few such services, but:
1) none is as intuitive and simple as I need it to be
2) I can't trust any of them to deliver my reminders far away into the future (for example - after 1 year)
As a solo developer, I have the track record of my main service (you can find it in my post history) being online now for more than 20 years (and I have others running 17+ years) so I know this email reminder will be something I can rely on. You can too.
I tried to make it as simple and straightforward as possible so it's always quick and convenient to use. No account needed, easy magic email login if you want to see pending/sent reminders.
As I'm sure you're curious (as I always am) about AI use - I used (heavily) Claude Opus 4.6 to build it (I didn't use it to write or improve this post, I don't do that!). UI and UX wise, it's 90% me - 10% Claude, code wise - it's about the opposite - 80-90% of the code was done by Claude, though I provided guidance and steered toward simplicity throughout. It uses no frameworks or external libraries. I don't use Claude Code - just claude.ai on a $20 sub, but my workflow is fairly context frugal so I never ran into limits. If anyone is curious about it - I'll share the details of how I use Claude in the comments.
I don't plan on monetizing it any time soon (if ever). Like all my other projects - I created this to address a personal pain point and I hope it'll be useful to others. If by any chance it grows in popularity (which I doubt, because it's such a niche tool) - I can see it being monetized (mostly to offset email sending charges) through sponsors in the footer of the reminder email or something like that.
This is the first time I'm sharing this service outside of a small circle of friends so I have no idea what kind of feedback and/or suggestions I'll get, but as I'm writing this - I don't plan to add any more features other than maybe an "about" or a "faq" section where I explain some of what I wrote here (like why should one trust that this random free website will still work in a year to deliver their email reminder) and maybe a dark theme?
Thank you for reading through all that and hopefully for trying this tool. All comments and suggestions will be highly appreciated and I'm around if you have any questions!
Cheers
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