connpass is an event management platform from BeProud Inc. designed for IT study groups, tech conferences, and community meetups. Organizers can create event pages, manage multiple ticket types, and collect prepaid fees through PayPal integration.

The platform provides lottery-based registration alongside first-come-first-served signups, letting organizers give fair chances to participants who cannot register immediately. Events can be discovered through social network integration with Facebook and GitHub, and participants receive notifications when friends host or register for events.

The platform charges no subscription fees, letting organizers pay only PayPal payment processing fees for paid events.