Overview
Cal.diy is the MIT-licensed, self-hostable scheduling platform powering Cal.com. It enables individuals and teams to create shareable booking links, manage availability, sync with Google/Outlook calendars, and automate reminder workflows. It supports round-robin and collective event types. Deploy via Docker Compose or Vercel with environment configuration for a database and email provider.
Where it falls short of Calendly
- Self-hosted setup requires configuring PostgreSQL, email/SMTP, and OAuth providers
- Enterprise features (SAML SSO, workflows at scale, analytics) are cloud-only or require an enterprise license
- Payment collection integrations need additional third-party setup
- Admin UI for multi-tenant management is less polished than Calendly's hosted offering
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
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