Redmine - Flexible project management web application
LibreOffice - Free office suite, open source, and compatible with .doc, .docx, .xls, .xlsx, .ppt, .pptx files. Updated regularly – download for free. Originally based on OpenOffice.org.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
Feng Office - Feng Office is a commercial Open Source web based solution aimed to enhance collaboration and productivity
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.