LibreOffice ie previously known as OpenOffice which is an open source office suite including text editor, spreadsheet and presentation tools.

WPS Office is an office suite for Microsoft Windows, Linux, iOS and Android OS.

Freeplane is a free, open source software application for creating mind maps and electronic outlines.

Calligra Suite is a graphic art and office suite by KDE.

FreeOffice is a complete office suite with a word processor, a spreadsheet application and a presentation program.

Apache OpenOffice is a free office package with a text editor, spreadsheet and presentation software.

ONLYOFFICE Document Server is an online office suite comprising viewers and editors for texts, spreadsheets and presentations.

Tiki Wiki CMS Groupware or simply Tiki, originally known as TikiWiki, is a free and open source Wiki-based content management system and online office suite w…

WPS Office is an office suite for Microsoft Windows, Linux, iOS, Android.

LibreOffice is a free and open source office suite.