Birthday wishes for your sister
A sister is your first best friend and your longest argument. Her birthday message can be both.
Turn your words into a card they’ll remember.Opens with their name, writes your message itself. Free to make, ready in 2 minutes.
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Sweet birthday wishes for your sister
- Happy birthday to my sister, my secret keeper and my forever best friend. Put it in a card →
- Growing up with you was chaos, and I wouldn't change a single day. Happy birthday, sis. Put it in a card →
- You're proof that family can also be your favourite friend. Happy birthday! Put it in a card →
- Happy birthday to the one person who remembers every embarrassing thing I've done and loves me anyway. Put it in a card →
For an older sister
- Happy birthday to the sister who went first, so I didn't have to. Thank you for always clearing the way. Put it in a card →
For a younger sister
- Happy birthday to the little sister who's not so little anymore. I'm so proud of who you've become. Put it in a card →
Funny birthday wishes for sister
- Happy birthday, sis! I'm still the favourite, but you're a close second. Put it in a card →
- Happy birthday to the person who borrowed my clothes and never returned them. You're forgiven. For today. Put it in a card →
- Sisters: built-in best friends with return-policy issues. Happy birthday! Put it in a card →
A surprise to pop open
Balloon Poptap to load the live demo
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Pop every balloon to reveal the birthday message.
Make this for themFull screen ↗Tip · Dig out one childhood photo of the two of you and send it with the message. Siblings love proof of old haircuts.
Don’t just text it. Send a card that opens with their name.Your message, their name and a little magic, on one private link. Ready in 2 minutes.♡ Make their card free
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Questions people ask
What is a heart-touching birthday wish for a sister?
"You're proof that family can also be your favourite friend. Happy birthday, sis."
How can I wish my sister happy birthday in a unique way?
Send a playful card she has to interact with, like popping balloons or scratching a card, with a childhood memory inside.
What do you write to an older sister on her birthday?
Thank her for going first: the advice, the cover stories, the way she looked out for you.