Birthday By Definition

Change your Card’s text, style, envelope, stamp, backdrop, and more. Add additional text boxes where you want them.

Personalize with your event’s details, make or import a guest list, and send with a click.

Use customizable Blocks for schedule, registry, accommodations, travel details, and more.

Send your way, via email, text message, or a shareable link you can paste and post anywhere.

Track opens and RSVPs, communicate with guests instantly, and take adult vs child headcounts.