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Learning Tools

Coin Flip Simulator

Flip one or many virtual coins and review the result distribution.

Learning Tools

Dice Roller

Roll multiple dice with configurable sides and a numeric modifier.

Learning Tools

Interactive Periodic Table

Explore all 118 elements by atomic number, symbol, category, period, and group.

Learning Tools

Keyboard Key-Code Inspector

Inspect key, code, location, modifier, and repeat data from keyboard events.

Learning Tools

Large Number Name Generator

Enter a number or power of ten to find its short-scale and long-scale name, from billion and milliard to googol.

Learning Tools

Sudoku

Generate and play accessible Sudoku puzzles at three difficulty levels.

Learning Tools

Typing Tutor

Practice typing and measure speed, accuracy, elapsed time, and progress.

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