Used by families in 39 countries, across 6 continents.
The Child-Safe Digital Pen Pal Platform for Real Friendships.
Stamplo is fully digital, so no physical mail or home addresses are ever shared between families. Parents stay in control while kids make connections that last. Every letter is encrypted, reviewed by you, and approved before delivery, creating safe, slow friendships across 39 countries.
📅 For children aged 7–14 only
Start Free — Create Your Family AccountYour child can start writing once you complete ID verification.
See how we meet the UK ICO Children's Code for online child safety →Verified Parents, Always
Parent ID verification is required before children can send their first letter. This helps keep Stamplo a trusted, real-family community – no anonymous accounts, no strangers, just verified families like yours.
🔑 Invite Codes & Friend Finder
Children connect only with parent approval. Families can share invite codes in real life, or manage visibility in the parent-controlled Friend Finder at any time.
👀 Four-Eyes Check
Every pen pal request, letter, and image must be approved by a parent on both sides before it is delivered — so nothing is shared without your consent.
🔒 Encryption
Letters and images are encrypted in transit and at rest to protect your family's privacy.
🏅 Collect Stamps
Kids earn country-themed and limited-edition stamps with each safe exchange — sparking curiosity about the world and rewarding positive connections.
🧑🎨 Avatars & Badges
Children choose their avatar and unlock badges as they connect with new pen pals — celebrating creativity and safe exploration.
📚 Learn & Connect
Practice writing, learn about new cultures, and build real friendships — all within a parent-approved, child-safe environment.
Stamplo is built differently — by design
Most platforms are built to maximise time spent. Stamplo is built to maximise trust. There are no feeds, no notifications designed to pull children back in, no algorithms deciding who your child talks to. Just letters — written, reviewed, and delivered at a human pace.
| Other platforms | Stamplo |
|---|---|
| Optimised for engagement | Optimised for safety |
| Anonymous or unverified accounts | Every parent identity-verified |
| Real-time, unsupervised messaging | Every letter reviewed by both parents |
| Designed to keep children online longer | Designed for slow, meaningful connection |
| No parental visibility into content | Full parental oversight, always |
A Growing Global Community
Children on Stamplo are writing to pen pals in the United Kingdom, United States, France, India, Canada, Japan, Germany, and 32 other countries.
Your child could be next.
How It Works
Sign Up
Parents register and set up their family account. Complete ID verification so your child can start sending letters.
Find a Pen Pal
Kids connect using invite codes shared in real life — or discover new friends safely through the parent-approved Friend Finder.
Write & Collect
Send digital letters, attach photos (if allowed), and earn collectible stamps from around the world — all fully parent-approved.
What Parents Are Saying
My daughter found Stamplo herself as she wanted a foreign friend to write to. She's been using it for a week and is delighted every time a message arrives. As a primary school teacher, I learned English and Spanish through pen pals and it was the best way I ever found to really speak a language. I think this is worth knowing about.
Primary school teacher & parent
France 🇫🇷
Our 9-year-old daughter loves expressing herself, and she adores the opportunity Stamplo gives her to connect with children from all over the world. The platform is very well designed and, above all, reassuring, which is extremely important to us as parents.
Cyril & Audrey
France 🇫🇷
A growing community of parents who value safety, privacy, and real connections for their children.
Running a school or workplace pen pal programme?
Stamplo supports closed, private networks for schools and organisations — with the same parental verification and four-eyes approval that families trust.
From the Stamplo Blog
Guides and research for parents thinking about children's online safety and communication.
Not Sure How Safe Your Family Tech Setup Is? This Free Quiz Will Tell You
A quick, free check — no sign-up, no data stored.
📊What the Data Shows About How Children Write Letters Online
Real Stamplo data: ~5 letters/month, 62% reply rate, friendships lasting months.
🏛️What We Told the UK Government About Children and Social Media
Our submission to the UK consultation on children's digital wellbeing.