AGPL v3

Free · Open
A data mining software written in Java, with focus on research in algorithms
Data Mining·Framework
Desktop
Language
Java
AlertCaution is advised.

Free · Open
Framework designed to build and explore artificial intelligence systems with human-like cognitive abilities
Artificial Intelligence·Framework
Desktop
AlertCaution is advised.

Free · Open
A platform for managing virtual machines and containers, integrating KVM hypervisor and Linux Containers with software-defined storage and networking
Virtualization Tool
Desktop
Browser
AlertCaution is advised.
Free · Open
A secure communication platform enabling encrypted text, voice, video messaging, and file sharing across mobile and desktop devices
Instant Messenger·Group Chat·Videoconference
Desktop
Mobile-Tablet
AlertCaution is advised.

Free · Open
View a wide range of document formats, including PDF, ebooks (ePub and Mobi), XPS, DjVu, CHM, and Comic Books (CBZ and CBR), with a focus on speed and portability
PDF Viewer·Document Viewer
Desktop
AlertCaution is advised.