Icon representing Send <strong>20th birthday cards</strong> online

Send 20th birthday cards online

  • Create a classy 20th birthday e-card filled with messages, GIFs, photos & videos.
  • Choose from themed birthday backgrounds or add your own.
  • Add a collection for a present in one click.

Get started in 1 minute. Pay only when you're ready to send.

Happy Birthday Amanda! Hope you drink lots of bubbles, eat lots of cake, and party hard! Have a great day x


Sample message image for message from Grace

Happy birthday Mandy. I hope the family spoils you and you have a fab day x


Sample message image for message from Brian

Happy Birthday Amanda! Hope all your birthday wishes come true on this special day. Or at least one of them. ❤️🎂🎉


Sample message image for message from Leanna

Go Amanda!!! Enjoy yourself and crown a great day with a cocktail you fab girl! You know I'll be there, too 😘


How Thankbox Works

Create step image


Start your Thankbox in 1 minute. Personalise it with over 100 custom backgrounds and icons to choose from. Add an optional gift collection.

Share step image


Invite your group to add their messages with a simple link. Everyone can customise their message with fonts, photos, videos & GIFs.

Send step image


Send when you're ready or schedule for later. The lucky recipient gets an e-card full of lovely messages that lasts forever. They can reply, download and share it.

How it works

 We used Thankbox for end of year teacher gifts and it was so easy, with the option of lovely personalised messages as well as lots of choice of gifts.  

— Katie

Example gift card options we offer

Add a gift card collection in just one click

Securely collect cash from everyone when they add their messages. The card's recipient can choose a prepaid card or a gift card from over 700 popular retailers worldwide. Easy, flexible & rewarding!

How gift collections work
A girl holding a wallet

It's FREE to get started

Create your Thankbox and invite others to add their messages for free. Then it's just $5.99 to send or schedule your card. You can split the cost with everyone and pay from the collection pot. We think it's fair to share.

See pricing
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Help care for our planet

We love planet Earth! By sending a Thankbox you are helping preserve it for future generations.

  • No plastic or paper, and zero CO2 emissions.
  • We plant a tree for every 10 Thankboxes sent.

Bringing joy to thousands of organisations, including

Amazon logo
HSBC logo
Unilever logo
Sony logo
Booking.com logo
NHS logo
Canon logo
Deloitte logo

The easiest way to celebrate someone

Just because you’re not together doesn’t mean you can’t make someone feel special. Thankbox is perfect for any occasion when lots of lovely people want to celebrate one lucky person.

Celebrate in style with an online 20th birthday card & collection

Everyone can say 'happy birthday'

It's tricky for everyone to sign a group birthday card. Not with a Thankbox. Create in seconds, invite anyone, anywhere to add messages and send. Easy. With unlimited messages, everyone’s included and birthdays much happier.

Birthday wishes made personal

A birthday Thankbox is so much more than a simple ecard. Customise backgrounds, change fonts and icons. Messages shine with photos, videos and GIFs. 'Happy birthday' is now 100% personal and memorable.

Collect for a birthday present

An optional collection pot comes as standard with a Thankbox. Add a message and chip in to the collection in one go. Less hassle, no time wasted. It's the icing on the cake!

Try Thankbox now!

Try it now

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