Thunderbird Appointment thunderbird/appointment

Thunderbird's booking-page app; share your availability, connect CalDAV or Google calendars, and let others book a time. Self-host with Docker.

Creator kit + Compare GitHub ↗ Install guide (official) ↗

Thunderbird Appointment at a glance

Checked 16 Oct 2026

Thunderbird Appointment (554 stars, latest release Oct 2026) is the scheduling service behind appointment.tb.pro. Hosts set availability, connect CalDAV or Google calendars and share a booking page; Zoom links can be attached. MPL-2.0. Docker Compose is the only supported install (backend, frontend, PostgreSQL, Redis, mail). The README frames self-hosting mainly around development; the built-in password login is "meant for developing and testing". No group polls, team round-robin or payments are documented.

Cite this pageRepoQuarry. “Thunderbird Appointment.” Checked 16 Oct 2026. https://repoquarry.dev/projects/thunderbird-appointment

How much of Calendly does it replace?

2 of 6 jobs. One-person booking page with CalDAV/Google sync; no polls, teams or payments documented.

Personal booking pages Partial replacement

Calendar sync and availability Partial replacement

Group polls to find a time Not covered

Team round-robin and collective scheduling Not covered

Payments for bookings Not covered

Reminders Not covered

For group polls to find a time, team round-robin and collective scheduling, payments for bookings, reminders, see other Calendly alternatives. You may also need to build an interface, an API server and hosting yourself.

Facts, with sources

Every answer links to where we found it. We read the documentation; we did not install it.

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QuestionAnswerSourceChecked

Runs on my machine? Self-hosted with Docker Compose; also hosted by Thunderbird at appointment.tb.pro Using Docker is the recommended and for now the only supported method of building and developing Thunderbird Appointment. github.com · appointment#get-started ↗ 1d ago

Code licence MPL-2.0 (weak copyleft, file-level) Mozilla Public License Version 2.0 github.com · LICENSE ↗ 1d ago

Model weights licence No separate model weights github.com · appointment#readme ↗ 1d ago

Commercial use Allowed; MPL-2.0 conditions apply to modified files you distribute Mozilla Public License Version 2.0 github.com · LICENSE ↗ 1d ago

Paid services needed? None required to self-host; Google and Zoom integrations need your own API credentials Allows to query and write event data into calendars using CalDAV format github.com · README.md ↗ 1d ago

Hardware Not documented; runs five containers (backend, frontend, PostgreSQL, Redis, Mailpit) Know the answer? —

Operating systems README supports Docker for building/development, but does not specify Windows/macOS/Linux hosts; container deployment is not recorded as native OS support Using Docker is the recommended and for now the only supported method of building and developing Thunderbird Appointment. github.com · appointment#installation ↗ today

Setup effort Medium; clone, copy .env files, docker-compose up; aimed mostly at developers This is meant for developing and testing Appointment, but can also be used when self-hosting the app. github.com · appointment#installation ↗ 1d ago