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This interactive tool lets you toggle binary digits and instantly see their decimal value.

This free tool performs a financial calculation of an ARR.

Play all twelve musical notes of the chromatic scale and create your own melodies.

This virtual stopwatch keeps track of time with split-second precision.

Add a cool visual effect to your images with this pixelization tool.

Modern retro-style version of the classic snake game.

A cellular automaton first described by John Conway.

View the Mandelbrot set, one of the most famous and beautiful fractals in geometry, with a high degree of magnification.

This useful tool displays a potentially infinite number of securely generated passwords.

A simple game to prove how well you can identify national flags from around the world.