A sweet painting tool

Play music with this piano keyboard

A collection of tools for exploring fundamental musical concepts in a fun way.

A tool for simple arithmetic calculations

A simple maze game

Interactive game for typing practice

An animated face that speaks whatever you type

Oscilloscope program for visualizing microphone input

A multilingual offline dictionary

Prove Sir Isaac Newton correct

An infix-notation graphing calculator

A Logo-inspired turtle that draws colorful pictures with snap-together visual programming blocks

Learn about the planets

A sweet Chess game

Learn financial planning basics

Read thousands of free e-books

Talk to your computer in Python

Create your charts

Create your own comic

Animate stick figures with keyframes

Find matching pairs

A game about fractions

Based on gene regulatory networks

It is a multilevel arcade game

Engaging math game for children

Tell a story

A mechanical calculator

A game based on logical induction

A pattern-matching game

Get on your feet and dance!