Hippo Repository is a Java-based Open-Source Content Repository System.
It is based on the Jakarta Slide project.
The Hippo Repository can store and index documents.

• Full WebDAV Server Support
• Multiple namespace support, on the fly configuration
• Support for a variety of backend systems for storing the content including different databases and file system storage
• Transactions and Locking for data integrity
• Flexible control over permissions at a per file level via support for the WebDAV ACL
• DASL support for any backend, extensible for using backends search capabilities for higher scalability and less latency
• Search with lucene indexing
• Binding support