# owncloud/core

:cloud: ownCloud web server core (Files, DAV, etc.)

Repository: https://github.com/owncloud/core
Canonical: https://ross.abutalabs.com/products/owncloud-core
Homepage: https://owncloud.com
Language: PHP
License: AGPL-3.0
License Family: copyleft
Topics: owncloud, php, javascript, sharing, self-hosting, enterprise, file-sync, file-sharing, federated, platform, self-hosted, server, webdav, owncloud-classic
Last push: 2026-08-24T03:38:45+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 95, longevity 100
- inputs: {"age_days": 5121, "days_push": 9, "days_rel": 34, "gap_med": 0, "n_releases_24m": 34}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8831, forks 2063 (observed 2026-08-28T04:10:25.941361+00:00)

## What it is
ownCloud Core is the server-side component of ownCloud Classic, a self-hosted file storage, sync, and sharing platform written in PHP. It provides WebDAV/CalDAV/CardDAV servers, a REST API, user management, encryption, external storage backends, and a plugin architecture for apps.

## Use cases
- self-host a Dropbox alternative for file sync and sharing
- run an on-premises file server with WebDAV access
- share files securely with external collaborators using password-protected links
- mount existing SMB/Windows network drives into a web-accessible file platform
- extend a file platform with apps like Calendar, Contacts, and Activity
- keep documents on-premises while editing with Office 365 or Collabora Online

## When to choose
- you need full control over where files are stored (on-premises or own data center)
- you want a mature, widely deployed open-source file sync and share server with a large app ecosystem
- you need WebDAV, CalDAV, and CardDAV support out of the box
- you require enterprise features like external storage mounting, encryption, and federation
- you want to integrate file sharing into tools like Microsoft Teams or Outlook

## When to avoid
- you want a modern Go-based single-binary server - consider ownCloud Infinite Scale (oCIS) instead
- you only need simple static file hosting without sync or sharing features
- you cannot operate a PHP stack with MySQL/MariaDB/PostgreSQL/SQLite
- you need a lightweight personal cloud with minimal resource usage - lighter alternatives like Seafile or Syncthing may fit better

## Facets
- artifact type: application
- maturity: stable
- function: http-server, file-upload, auth, cryptography, plugin-system, api-framework, self-hosted
- domain: self-hosted, files, web-development, privacy, security, backend
- platform: php, self-hosted, cross-platform
- tags: file-sync, file-sharing, webdav, caldav, carddav, dropbox-alternative, content-collaboration, enterprise, federated, external-storage, linux, web-server, docker

## Member repositories
- owncloud/core (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:25.941361+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 2026-08-29T17:24:49.699091+00:00, confidence not recorded.
  - readme: https://github.com/owncloud/core (fetched 2026-08-28T04:10:25.941361+00:00, sha 0b8465b8e10c)
  - homepage: https://owncloud.com (fetched 2026-08-29T08:25:20.467339+00:00, sha caac7e97c068)
  - site_page: https://owncloud.com/features/microsoft-teams-integration (fetched 2026-08-29T08:25:20.474355+00:00, sha 8be6cea5b100)
  - site_page: https://owncloud.com/features/microsoft-365-integration (fetched 2026-08-29T08:25:20.472585+00:00, sha 6fe8974580f1)
  - site_page: https://owncloud.com/features/outlook-plugin (fetched 2026-08-29T08:25:20.476025+00:00, sha 93e1d9bd389c)
  - site_page: https://owncloud.com/features/windows-network-drive-integration (fetched 2026-08-29T08:25:20.478212+00:00, sha f703457d38b3)
  - site_page: https://owncloud.com/about-us (fetched 2026-08-29T08:25:20.480214+00:00, sha 7428b9d2956f)
  - site_page: https://owncloud.com/docs-guides (fetched 2026-08-29T08:25:20.482130+00:00, sha 16715929fa00)
  - site_page: https://doc.owncloud.com/docs/next (fetched 2026-08-29T08:25:20.484061+00:00, sha 970fb7f3a5d5)
  - site_page: https://owncloud.com/pricing (fetched 2026-08-29T08:25:20.470714+00:00, sha c695baa25016)
- Data as of 2026-08-30T08:39:29.467469+00:00.