Friend Compatibility Test
Friendship chemistry from two birthdays
Check our friendship chemistry →Free · No signup · Instant results
The same AI compatibility engine that scores couples works just as well for friendships. Enter your birthday and your friend's birthday to get a chemistry score, an animal duo type, and a suggested lucky day to hang out — in seconds, free, in five languages.
Everything runs in your browser: neither birthday is sent to our servers, stored, or shared. Treat the score as a fun conversation starter with your best friend, not a verdict on your friendship.
Is the friend compatibility test free?
Yes — completely free, no signup or credit card required.
Does it work for friends, or only couples?
The engine compares two birthday profiles, so it works for any pair: best friends, coworkers, siblings, or couples. The framing is up to you.
Will our birthdays be saved?
No. All processing happens in your browser. Neither birthday is sent to our servers, stored, or shared with third parties.
Related tests: AI Compatibility Test (couples) K-Pop Persona Match