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Open Source Appointment Scheduling Tools using Postgres

A curated collection of the best open source software for booking appointments and managing calendars. using Postgres.

Cal.com

Self-host your own scheduling page, no vendor required

  • Stars

    49,650

  • Last commit

    21 hours ago

  • License

    MIT
Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.

Open Source Alternative to:

Calendly

Rallly

Effortless group scheduling for seamless collaboration

  • Stars

    5,337

  • Last commit

    13 hours ago

  • License

    AGPL-3.0
A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.

Open Source Alternative to:

Calendly
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