Thunderbird Appointment

Open-source scheduling tool that lets others book open slots on your calendar.

Webfree

Thunderbird Appointment is an open-source scheduling tool that lets people share a booking link so others can pick an open time slot on their calendar directly, without emailing back and forth. It's self-hostable and built by the Thunderbird team, aimed at professionals who want to eliminate manual meeting-time coordination.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Thunderbird Appointment - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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