Self-hosted Scheduling, Booking & Appointments tools

Self-hostable scheduling software for appointments and bookings with customizable booking pages, availability rules, reminders, and integrations for teams and developers.

MITActively maintained

Alternative to:

Calendly+12

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

OSL-3.0Actively maintained

Alternative to:

Cloudbeds+10

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

AGPL-3.0Actively maintained

Alternative to:

Doodle+9

Open source appointment scheduler for customer bookings, provider management, and Google Calendar sync, deployable on your own PHP/MySQL server.

GPL-3.0Actively maintained

Alternative to:

Calendly+18

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

Actively maintained

Alternative to:

Eventbrite+10

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

AGPL-3.0Actively maintained

Alternative to:

Challonge+4

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.

MITActively maintained

Alternative to:

Wanderlog+3

LibreBooking is an open-source scheduling system for managing resource reservations with calendars, waitlists, quotas, reporting, and role-based access control.

GPL-3.0Actively maintained

Alternative to:

Skedda+11

Django-based application to create date/time polls and general surveys for scheduling meetings, with anonymous voting, private events, and LDAP support.

GPL-3.0Actively maintained

Alternative to:

Doodle+13

Self-hostable desk sharing and room reservation platform with PWA booking UI, Admin UI, REST API backend, and PostgreSQL storage.

GPL-3.0Actively maintained

Alternative to:

Condeco by Eptura+7

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 booking.

Actively maintained

Alternative to:

Condeco by Eptura+5

Open-source web shop for food coops and local shops; supports delivery rhythms, manufacturer admin areas, cashless bank-transfer payments, inventory and sync

AGPL-3.0Actively maintained

Alternative to:

Local Line+7

Open-source PHP/MySQL application for managing and reserving shared resources (rooms, equipment) with recurring bookings, access control, and notifications.

GPL-2.0Actively maintained

Alternative to:

Skedda+6

Web application to manage CSA/ACP/Solawi operations: members, deliveries, automated billing, online shop and multilingual communications.

Actively maintained

Alternative to:

Barn2Door+19

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 setup.

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-source project.

Activity unknown

Alternative to:

Doodle+15

A lightweight, curl-first free/busy scheduler that syncs availability from a CalDAV calendar and can send iCal booking invites via SMTP.

Activity unknown

Alternative to:

Calendly+11