Kalendar

Overview

Kalendar is a fully featured, free, and open-source scheduling tool that lets users create booking links, manage availability, sync calendars, customize branding, and run unlimited event types without subscriptions, vendor lock-in, or artificial limits.

Key features

• Booking links
• Unlimited event types
• Two-way calendar sync
• Custom branding
• Email notifications
• Availability rules
• Reschedule & cancel
• Google Calendar
• Outlook sync
• Self-hostable