21st Birthday Cards
Make your friend's first legal birthday one for the books! Get the whole crew to leave messages, share embarrassing photos and add silly GIFs. Want to make it extra special? Pool together for a gift that celebrates their newfound adulthood.
All Cards 21st Birthday Cards
21st birthday cards from the whole group
- Unlimited messages on your birthday card
- Add funny photos and GIFs to make them smile
- Anyone can sign the card online with a link
- Invite friends and send reminders via email
- Share online or download as a PDF to print
- Track card activity in your dashboard
Add a gift to make their 21st extra special
- Let everyone chip in for a birthday gift, or let one person pay.
- Set a fixed contribution amount or let people contribute what they can
- Keep contributions anonymous within the group
- Choose from eGift Cards, gift baskets and flowers in our Gift Store
- Give the GroupTogether AnyCard to let your friend pick from 150+ eGift Cards
How GroupTogether Birthday Cards Work
Our hilarious selection of birthday cards makes it easy to find the perfect card for any sense of humor. Bring everyone together with a group birthday card, the ultimate way to celebrate birthdays in the office, with family, friends, or anywhere in between. Get ready to make it a birthday they’ll never forget—laughs guaranteed!
Step 1: Create Your Birthday Card
Browse our creative and funny 21st birthday card designs and set up your card in minutes.
Step 2: Invite & Sign
Invite friends via email or share a link. Add messages, photos or GIFs, or chip in for a gift.
Step 3: Print or Share Online
Download your birthday card as a PDF to print and share in person, or send digitally.
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21st birthday card FAQs
The Group Card is $5.50 USD (including tax & fees) in the US. See what’s included here. The card organizer can pay for this card, or deduct it from the amount collected by the group if you are doing a collection.
Choose from our catalog of eGift Cards, gift baskets and flowers. See what’s available to give in the Gift Store.
No. Your friends or family members don’t need an account to add messages, photos and GIFs, or to make gift contributions. They simply click on your link to sign the card.
Here are some ideas to say “happy 21st birthday” in a funny way:
- "Welcome to the world of legal everything!"
- "Cheers to never getting carded again (just kidding, you totally will)"
- "Now your parents can finally admit they knew all along"
- "Here's to your first legit drink – may it be better than all the previous ones"
- "Congratulations on leveling up to Adult Mode"
- "21 years of preparation for this moment – make it count!"
- "Time to trade those juice boxes for the real deal"
- "Finally—your ID and your face will match!"
If you're looking for more inspiration, read our guide to crafting the perfect birthday card message with 50+ unique ideas. Or, use GroupTogether’s AI message writer to generate a funny and heartwarming 21st birthday message for your friend.
You can also check out our list of 21st birthday gift ideas to send alongside your card.
Absolutely not! Online birthday cards can feel just as (if not more) personal as physical birthday cards. Add custom messages, your favorite photos together, and cute and funny GIFs to make your online birthday cards feel extra special!
You can also download your birthday card as a PDF and have the whole group share a printed version of their messages and pictures with the birthday star.
Yes! GroupTogether lets you create 21st birthday cards, regular birthday cards, farewell cards, retirement cards, teacher cards, thank you cards, baby cards, sympathy cards, get well cards, employee appreciation cards, wedding cards, engagement cards, graduation cards and dozens of other cards.
Check out all the greeting card categories we offer.
Funny 21st Birthday Cards
Let's face it—turning 21 is kind of a big deal. Whether you're celebrating your roommate's legal debut or your sibling's milestone moment, a birthday card signed by the whole group captures all the excitement (and relief) of finally reaching adulthood.
GroupTogether makes it easy to collect messages from everyone who's been waiting years to buy the birthday star their first legal drink. Get the whole squad to add personal notes, upload photos of their "totally convincing" fake ID days and add funny GIFs. You can also set up a birthday gift collection for the new adult and get everyone to chip in.
Simply pick the perfect 21st birthday card design, share it with your circle and sign away. Download and print out a PDF to give in person, or share an online version. It's the most painless way to organize an epic 21st birthday celebration and make sure everyone gets to toast to your friend’s newfound freedom—legally this time!
Ready to create your 21st birthday card?
Get started in seconds. Pick a design and invite others to sign your birthday card. Set up a birthday gift collection if you like. It’s that easy!
