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Koken is a free content management system designed for photographers, designers and artists.

Subrion is a stand-alone PHP content management system that is very easy to use. It comes with a ton of great features including full source editing, per-page permissions, user activity monitoring, and much more.

HTMLy is an open source Databaseless Blogging Platform or Flat-File Blog prioritizes simplicity and speed written in PHP. HTMLy can be referred to as Flat-File CMS either since it will also manage your content.

FuelPHP is an open source web application framework written in PHP which implements the HMVC pattern.

Echo is a standalone JavaScript lazy-loading image micro-library.

XWiki is a free wiki software platform written in Java with a design emphasis on extensibility.

OpenKM is a Free/Libre document management system that provides a web interface for managing arbitrary files.

OpenWGA is Web Content Management computer software running on the Java Enterprise Edition Platform.

LogicalDOC is a free document management system that is designed to handle and share documents within an organization.

OpenCms is an open source content management system written in Java.

Magnolia is an open-source digital business platform with a content management system (CMS) at its core.

eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform written in Java.

Ametys is a free and open source content management system (CMS) written in Java.

Apache Roller is a Java-based Open Source "full-featured, Multi-blog, Multi-user, and group-blog server suitable for blog sites large and small".

Java Hosting packages on Linux servers.