OpenOffice – is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers.

Audacity is an easy-to-use, multi-track audio editor and recorder for Windows, macOS, GNU/Linux and other operating systems. Audacity is free, open source software.

GIMP is a cross-platform image editor 

Inkscape – Draw Freely

OpenLP is a free feature-rich open-source church presentation platform. 

Theophilos Bible program