pretix
Open-source ticket sales and event registration platform for any scale
Overview
pretix is a comprehensive event ticketing and registration system written in Python/Django, used by conferences, concerts, and workshops worldwide. It handles ticket sales, seating plans, check-in apps, invoicing, and attendee management with a plugin architecture for extensibility. The hosted service and self-hosted paths are both well-documented and production-grade.
Where it falls short of Calendly
- Steeper setup curve than simple booking tools
- No built-in one-on-one appointment scheduling workflow
- Mobile app for organizers is Android/iOS only, not PWA
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
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