Zcal
Beautiful open-source scheduling page and availability management tool
Overview
Zcal is an open-source scheduling link tool that lets users share a public availability page and accept bookings without back-and-forth emails. It connects to Google Calendar or CalDAV backends to respect existing events, and supports custom event types and durations. The self-hosted version gives full control over data and branding.
Where it falls short of Calendly
- Fewer calendar integrations than Cal.com
- No team scheduling or round-robin features
- Limited workflow automation (no reminders or follow-ups)
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
Tags
Claim this listing to keep it accurate, add a deploy template, or feature it on relevant pages.
Embed the Zcal difficulty badge in your README — it links back here.
[](https://openreplace.com/zcal)Similar open-source projects
Other self-hostable tools in the same space worth comparing.
Scheduling infrastructure for everyone, the open-source Calendly alternative
Open-source online appointment scheduling built on Cal.com
Open-source hotel reservation and channel management system
Node.js job scheduling library with persistent MongoDB-backed queue