Wishing you happiness and lots of great moments on your birthday 🎂

- Grace

Sample message image for message from Fin

Happy B-day! 🎂 You make work fun and bring such great ideas to the team. Cheers to YOU!

- Fin

Hope all your birthday wishes come true on this special day. ❤️🎉

- Jane

Celebrate Coming of Age with a Group 18th Birthday Card

Turning 18 is a big moment. Collect messages, photos and videos from everyone who watched them grow up, all in one digital card they can keep forever.

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Classic Officially Vintage Birthday Card

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How to Create an 18th Birthday Thankbox

Create & Customize

Pick a 18th birthday design from our catalog and set up the card in seconds. Personalize the title and background to make it theirs.

Invite Everyone

Share one link with friends, family and teammates so they can add messages, photos, GIFs and videos. There is no limit on how many people can sign.

Send & Celebrate

Schedule the card to arrive on their 18th birthday, or send it when you are ready. If you added a gift collection, they can redeem it for a digital gift card.

Why Thankbox Is the Best Way to Celebrate an 18th Birthday

A Card as Big as the Milestone

An 18th birthday marks the start of adulthood, and a paper card quickly runs out of space. With Thankbox, everyone can write as much as they like, from words of wisdom to embarrassing childhood stories.

Bring Everyone Together, Wherever They Are

Friends heading off to college, family across the country and old classmates can all sign the same card with one link. It is the easiest way to make sure nobody is left out.

Collect for a Grown-Up Gift

Pool money for a meaningful 18th birthday present with a gift collection. Everyone can contribute securely when they add their message, and the birthday star chooses a digital gift card they really want.

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Create your Thankbox in seconds - no need to register.
Only pay when you're ready to send it.