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.
FINAL CUT - Library for creating terminal applications with text-based widgets
Padlet - Visual boards for organizing anything.
ncurses - ncurses (new curses) is a programming library that provides an API which allows the programmer to...
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.
Limnor Studio - It is a generic-purpose no-code programming system.