A sweet painting tool

Play music with this piano keyboard

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

An animated face that speaks whatever you type

Interactive game for typing practice

A simple maze game

A tool for simple arithmetic calculations

Oscilloscope program for visualizing microphone input

A multilingual offline dictionary

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

A sweet Chess game

Learn about the planets

Prove Sir Isaac Newton correct

An infix-notation graphing calculator

Learn financial planning basics

Read thousands of free e-books

Create your charts

Talk to your computer in Python

Engaging math game for children

Find matching pairs

Create your own comic

Animate stick figures with keyframes

A mechanical calculator

It is a multilevel arcade game

A game based on logical induction

A game about fractions

Tell a story

A pattern-matching game

Get on your feet and dance!

Based on gene regulatory networks