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.

MagicaVoxel - A free lightweight GPU-based voxel art editor and interactive path tracing renderer.

Padlet - Visual boards for organizing anything.

Goxel - Goxel is a simple, but powerful voxel graphic editor with 24-bit color support, unlimited scene...

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

Cubik Studio - Model in a unique cubic style. Start modelization with boxes. Move, rotate and scale cuboids.