It's their birthday, so wish your bestie the best day ever with the perfect words. You can use these best friend birthday ...

or cute social media photo, there's nothing better. For even more inspiration, check out more best friend messages and quotes ...

You can use these best friend birthday quotes as captions on Instagram, write them in a card, or send them as a text or DM to make your friend's day. It's all about showing just how much you care.