ownCloud : ownCloud gives you freedom and control over your own data.
ownCloud

ownCloud Screenshot
Overview
ownCloud gives you freedom and control over your own data. A personal cloud which runs on your own server. ownCloud allows you to access your data wherever you are, when you need it.

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Features

Access Your Data

Sync Your Data

Share Your Data

Versioning

Encryption

Drag and Drop Upload

Themeing

Viewer for ODF Files

Application API's

Migration and Backup

Tasks

Application Store

Calendars

File Notifications

Galleries

External Storage

Logging

LDAP / Active Directory