# nextcloud/calendar

📆 Calendar app for Nextcloud

Repository: https://github.com/nextcloud/calendar
Canonical: https://ross.abutalabs.com/products/nextcloud-calendar
Homepage: https://apps.nextcloud.com/apps/calendar
Language: JavaScript
License: AGPL-3.0
License Family: copyleft
Topics: nextcloud, calendar, rfc-5545, nextcloud-app, calendars, web, caldav, caldav-sharing, webcal, self-hosted, nextcloud-calendar, hacktoberfest
Last push: 2026-09-03T00:41:53+00:00

## Health v2 (maintenance only)
Score: 68/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 8, longevity 100
- inputs: {"age_days": 3638, "days_push": 0, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1185, forks 325 (observed 2026-09-03T02:15:15.485595+00:00)

## What it is
The official Calendar app for Nextcloud, a web-based frontend for managing and syncing events via CalDAV. It supports event invitations, free/busy scheduling, reminders, WebCal subscriptions, and integration with other Nextcloud apps like Contacts, Talk, Tasks, and Deck.

## Use cases
- manage a self-hosted calendar in the browser
- sync events across devices via CalDAV
- subscribe to external webcal calendars
- invite attendees and check free/busy availability
- set event reminders via browser and email
- view tasks with due dates in a calendar view
- share calendar links for appointment booking

## When to choose
- you already run a Nextcloud instance and need calendar functionality
- you want a self-hosted, privacy-friendly alternative to Google Calendar
- you need CalDAV sync with mobile and desktop clients
- you want tight integration with Nextcloud Contacts, Talk, and Tasks

## When to avoid
- you are not using Nextcloud server as the backend
- you need a standalone calendar server without Nextcloud
- you need offline-first desktop calendar features beyond the browser

## Facets
- artifact type: application
- maturity: active
- function: web-framework, http-client, search-engine, internationalization
- domain: developer-tools, self-hosted, web-development, cross-platform
- platform: browser, self-hosted
- tags: nextcloud, calendar, caldav, webcal, rfc-5545, groupware, scheduling, event-management, appointment-booking, reminders, web-server, javascript

## Member repositories
- nextcloud/calendar (main) score 68

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:15.485595+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:25:19.723589+00:00, confidence not recorded.
  - readme: https://github.com/nextcloud/calendar (fetched 2026-09-03T02:15:15.485595+00:00, sha dfe670c56622)
  - homepage: https://apps.nextcloud.com/apps/calendar (fetched 2026-08-29T12:33:09.508836+00:00, sha 509abcb42861)
  - site_page: https://apps.nextcloud.com/apps/calendar/releases?platform=35 (fetched 2026-08-29T12:33:09.520121+00:00, sha e249df0dd01f)
  - site_page: https://apps.nextcloud.com/apps/calendar/releases?platform=34 (fetched 2026-08-29T12:33:09.529550+00:00, sha e249df0dd01f)
  - site_page: https://apps.nextcloud.com/apps/calendar/releases?platform=33 (fetched 2026-08-29T12:33:09.535217+00:00, sha e249df0dd01f)
  - site_page: https://apps.nextcloud.com/apps/calendar/releases?platform=32 (fetched 2026-08-29T12:33:09.541030+00:00, sha e249df0dd01f)
  - site_page: https://apps.nextcloud.com/apps/calendar/releases?platform=31 (fetched 2026-08-29T12:33:09.546634+00:00, sha e249df0dd01f)
- Data as of 2026-08-30T08:39:29.467469+00:00.