cPanel - With its first-class support and rich feature set, cPanel & WHM has been the web hosting industry's most reliable, intuitive control panel since 1997.
code-prettify - Code Prettify is an embeddable script that makes source-code snippets in HTML prettier.
Webmin - Webmin is a web-based interface for system administration for Unix.
Apache Tika - Apache Tika toolkit detects and extracts metadata and text from different file types.
Vesta Control Panel - – What I love about Vesta is that it's fast and easy to use
Apache Archiva - Apache Archiva is an extensible repository management software.