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Kalendar

Free scheduling tool. Unlimited users, unlimited event types, no per-seat fees. Calendly replacement you can self-host.·kalendar.work

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Free · Open source See pricing ↓

Kalendar is a free scheduling and booking platform positioned as a Calendly replacement. It offers shareable booking pages, unlimited event types, two-way calendar sync with Google and Outlook, and automated confirmation/reminder emails. It supports unlimited users with no per-seat fees, and offers a self-hosting option for deploying on your own infrastructure via the Founding.dev platform.

What it's for

Create shareable booking pagesManage unlimited event types and booking linksSync availability with Google Calendar and OutlookSend automated confirmation and reminder emailsAllow attendees to reschedule or cancel bookingsSelf-host scheduling software on own infrastructure

Features 11

Automated confirmation and reminder emails
Custom branding (colors, logo)
Custom/branded email notifications
Easy reschedule and cancel with notifications
Flexible availability (different hours per day, buffer times, minimum notice, booking windows)
Open source
Self-hosting option on own infrastructure
Shareable booking pages
Two-way calendar sync with Google Calendar and Outlook
Unlimited event types
Unlimited users, no per-seat fees

At a glance

free tieropen sourceself-hostable

TypeWeb app

DeploymentHybrid

PlatformsWeb

Forindividuals, teams

CompanyFounding.dev

Integrations

OutlookGoogle Calendar

Pricing

Kalendar itself has no paid tiers. A separate 'Deploy' tier is available via the Founding.dev platform for self-hosting, though pricing is not publicly listed.

FreeFree

No credit card required, free forever

No limits stated: unlimited users, unlimited bookings, unlimited event types