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Tasks.org Server alt nono Calendarserver

Standards-compliant calendar and scheduling server

Calendar & Contacts Archived ★ 507 stars Hard setup Apache-2.0

This project is archived. Upstream development has stopped, so expect no new features or security fixes. Consider an actively maintained calendar & contacts alternative.

Calendar and Contacts Server is a CalDAV and CardDAV server originally developed by Apple. It provides shared calendaring, scheduling, and directory services for groups.

Official siteSource code

Key features

  • Originated at Apple
  • Group scheduling support
  • Standards-compliant CalDAV

Strengths

  • Released under the Apache-2.0 license
  • Written in Python
  • Lightweight — runs in 512 MB RAM

Is Tasks.org Server alt nono Calendarserver secure?

OSV.dev has no published security advisories for Tasks.org Server alt nono Calendarserver's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

Tasks.org Server alt nono Calendarserver replaces

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SelfHostIndex: 10 · archived

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