Birthday Invitation AI is an all-in-one platform for creating beautiful birthday invitations and managing RSVPs. Choose from 500+ curated theme templates or describe any custom theme in any language—our AI creates personalized, print-ready invitations in minutes. Includes QR code RSVP tracking, real-time guest management, and automatic email reminders. Supports kids, teens, adults, milestone birthdays (1st, 2nd, 10th, 13th, Sweet 16, 18th), 8 languages, and a free RSVP form for custom designs.