BookWidgets - BookWidgets is an excellent application that let you create engaging exercises in minutes and easily share a varied variety of beautiful and fun activities with your classroom and others.

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.

Padlet - Visual boards for organizing anything.

WPS Office - Would you need Office Word, Excel or PowerPoint for Home, business or School? WPS.com would give you right version for you.

Socrative - Socrative helps teachers engage the class with educational activities to measure and visualize...

ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.