Mobilizon - A free and federated tool to get our events off Facebook
EventsApp - A simple concise app for creating and sharing events.
Upcoming.org - A simple way to share and discover interesting events
Event Hunt - Startups and Tech Events Curated By Locals
Happer - Meet people & participate in activities, happier together
Calendify - Calendify is an event community where you can share, publish, and subscribe to event calendars. It helps you to stay informed about what you are interested in and what is yet to come.