Best Self-hosted Scheduling, Booking & Appointments tools in 2026
17 self-hosted open source alternatives in this category
See also:
Billing & SubscriptionsCRM & SalesCustomer Support & TicketingERP & OperationsFinance & AccountingHuman Resources (HR)Marketing & Customer EngagementProject & Work Management17 services found

Cal.com
Open-source scheduling and appointment booking platform
Self-hostable scheduling software for appointments and bookings with customizable booking pages, availability rules, reminders, and integrations for teams and developers.

QloApps
Open-source hotel property management and booking system
PHP-based open-source hotel reservation platform providing PMS, booking engine, channel manager and hotel website features for small to enterprise properties.

Rallly
Open-source scheduling polls to coordinate events.
Open-source, self-hosted polling tool to find the best date/time with no login required.

Easy!Appointments
Self-hosted web appointment scheduling and booking system
Open source appointment scheduler for customer bookings, provider management, and Google Calendar sync, deployable on your own PHP/MySQL server.

pretix
Self-hosted event ticketing and registration platform
Open-source ticket shop and event registration software with online sales, box office mode, multilingual support, and extensible plug-ins and API.


Bracket
Open-source tournament management system
Open-source, self-hosted tournament system for creating and managing Swiss, single‑elimination and round‑robin tournaments with scheduling, dashboards, team/club manageme...

TRIP
Minimalist POI map tracker and trip planner
Self-hostable POI map tracker and trip planner to manage points of interest, build multi-day itineraries, and collaborate with travel companions without ads or telemetry.
LibreBooking
Open-source resource scheduling and reservation management
LibreBooking is an open-source scheduling system for managing resource reservations with calendars, waitlists, quotas, reporting, and role-based access control.
Bitpoll
Web app for scheduling meetings and running polls
Django-based application to create date/time polls and general surveys for scheduling meetings, with anonymous voting, private events, and LDAP support.

Spacepad
Privacy-focused room display and booking system for workplaces
Self-hostable room display app for tablets that shows real-time room availability, integrates with Microsoft 365, Google Workspace and CalDAV, and supports on-device book...

Seatsurfing
Desk and room booking system for workplaces and enterprises
Self-hostable desk sharing and room reservation platform with PWA booking UI, Admin UI, REST API backend, and PostgreSQL storage.


FoodCoopShop
Web shop and management system for food cooperatives
Open-source web shop for food coops and local shops; supports delivery rhythms, manufacturer admin areas, cashless bank-transfer payments, inventory and sync
GRR
Web-based resource management and reservation system
Open-source PHP/MySQL application for managing and reserving shared resources (rooms, equipment) with recurring bookings, access control, and notifications.

CSA Admin
Open-source web application for managing community-supported agriculture
Web application to manage CSA/ACP/Solawi operations: members, deliveries, automated billing, online shop and multilingual communications.

ESMira
Platform for anonymous experience-sampling longitudinal studies
ESMira is an open-source web server and mobile app suite for running Experience Sampling Method (ESM/EMA/AA) studies with anonymous participant data collection and simple...
HiveDAV
Curlable free/busy scheduler with CalDAV integration
A lightweight, curl-first free/busy scheduler that syncs availability from a CalDAV calendar and can send iCal booking invites via SMTP.

Framadate
Simple, privacy-focused online scheduling and polling tool
Free/libre web service for creating date-based scheduling polls and classic option polls; no registration required. Operated by Framasoft and built on the Pollaris open-s...