A sister is the one person who remembers your worst haircut and loves you anyway, so her birthday deserves more than a quick "HBD". On this page you will find happy birthday sister images in every mood: soft florals and gold lettering for the sister who loves pretty things, cute animals with cakes and balloons for the one who still laughs like a kid, and animated cards that sing, sparkle and move. Every image is free. Open the one you like, save it to your phone or send it right from the page.

Birthday wishes for your sister, ready to copy

Not sure what to say? Every image comes with birthday wishes written for it, and here are a few more you can use as they are or make your own.

Happy birthday to my sister and my very first friend. Life is better, louder and funnier with you in it.

Happy birthday, sis! Thank you for keeping my secrets, stealing my clothes and always being on my side.

To my sister on her birthday: I hope this year gives back to you all the kindness you hand out so freely.

Happy birthday to the only person who can finish my sentences and my fries. Love you always.

No matter how old we get, you will always be older. Happy birthday, big sis!

Happy birthday, little sister. I have been proud of you since the day you showed up and took over the house.

Miles apart today, but right there with you in spirit. Happy birthday, sister. Save me a slice of cake.

Happy birthday to my sister-in-law, who turned out to be one of the best parts of the deal.

For a big sister, a little sister or a sister-in-law

The same picture can say very different things depending on the words next to it. For an older sister, a thank-you goes a long way: she probably looked out for you more than you ever noticed. A younger sister will love something playful, and a little teasing is part of the tradition. For a sister-in-law or a friend who feels like a sister, keep it warm and simple: tell her you are glad she is family.

A small thing that means a lot

You do not need a long letter. A beautiful image, two honest lines and her name at the top are enough to make her smile when she opens her phone in the morning. New images and wishes are added all the time, so come back whenever her birthday sneaks up on you again.