Mer.id is an Indonesian platform for creating and sharing online wedding invitations. Designed to be quick and accessible, it lets users build an invitation from a phone by registering, choosing a theme, entering event details, and uploading photos. The service offers a selection of designs, with customization options for text, colors, fonts, music, backgrounds, photos, and decorative elements, so couples can tailor invitations to their event without design experience.

Invitation features include countdown timers, photo and video galleries, love stories, RSVP tracking, guest messages, gift information, and live streaming. A dashboard helps users monitor responses, while invitations can be shared through WhatsApp; the site also promotes Smart WhatsApp delivery and custom domains. Mer.id says invitations remain active indefinitely and presents its core invitation creation service as free. The platform is described as serving thousands of users across Indonesia, with customer support available for questions. By bringing design, guest responses, and sharing tools together, Mer.id aims to make preparing digital wedding invitations practical, polished, and convenient.