Write a handwritten letter to your sister today. We'll deliver it on a future birthday, wedding day, or random date — a letter she'll keep for the rest of her life.
The sibling relationship is one of the longest relationships most people will have. A sister is someone who knew you before the world did — who shared your parents, your childhood, your specific early-life weather. That shared history is in both of your bones, whether or not the two of you are close today. And the words that acknowledge that shared bond tend to be some of the hardest ones to say in person, because siblings rarely sit down to have those conversations. The relationship is too built-in.
A letter gives you a reason to finally put it into words. You sit down tonight and you write to your sister what you've never quite said. The memory from your childhood that you still think about. The thing about her you've always admired. The way she carried a family moment that you didn't know how to handle. The specific way her being your sister shaped you. You write it in handwriting she'll recognize instantly. You seal it, we hold it, and on a future date you choose it arrives in her mailbox.
Sisters keep these letters in a specific way. They don't frame them. They don't share them. They put them in the drawer with the other things they consider sacred, and they come back to them on hard days. A letter to a sister often gets more meaningful across a lifetime — because the older you both get, the rarer it is for one of you to stop and put into words what the other has been to you. Write it now. She'll have it forever.
Three simple steps. One beautiful moment, later.
Pour your heart onto paper. Use our Letter Helper if you'd like prompts. You decide when it should be opened — 1 year or 2 years from now.
Mail your sealed letter to our PO Box. We store it in a climate-controlled, fireproof safe — untouched, unopened, waiting.
On your chosen date, we mail your original, handwritten letter with tracking. Your words arrive exactly when they're meant to.
Your letter is in safe hands
You're trusting us with something irreplaceable. Here's what we do about that.
Letters are stored in climate-controlled, fireproof safes — not filing cabinets or cardboard boxes. We treat every letter as irreplaceable, because to someone, it is.
Every letter ships with an active tracking number, so you (or the recipient) know exactly when it's on its way.
If your address changes before your delivery date, email us anytime and we'll update your file. Your letter follows you — no extra fee.
If Hold My Letter ever closes, every stored letter is immediately mailed back to the sender's return address. No exceptions.
One letter. One delivery. One beautiful moment when it returns.
Emailed on your chosen date between 6 months and 2 years out. Add physical mailing for a small fee. Available worldwide — the right choice if you're writing to (or from) outside the United States.
One-time payment
+$12 to add physical mailing (first address)
One-time payment
+$12 to add physical mailing (first address)
Physical mailing add-on: +$12 for the first address. Each additional unique address: +$2.
The original Hold My Letter experience. Handwrite your letter, seal the envelope, and mail it to our PO Box. We store it in a climate-controlled, fireproof safe until your chosen delivery date — then send it back with tracking, still sealed.
One-time payment
One-time payment
🇺🇸 Currently available for US addresses only. International shipping coming soon!
Everything you need to know, answered plainly.
It only takes 20 minutes. The moment it lands will be worth years.
12 chapters. Age-by-age writing scripts. Read on the site.