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RSVPLite - Event RSVP Manager with Capacity Limits
RSVPLite is a self-hosted event RSVP and guest-list manager with a real, working capacity limit, not just a headcount you have to watch manually. Create an event, share a public RSVP link, and let the system handle the rest: once the confirmed headcount hits capacity, further "yes" RSVPs land on a waitlist automatically, and guests see that immediately so the event never silently overbooks.
Created Aug 14, 2026