Colour Contrast Tool NEW

Check the WCAG 3 contrast between two colours and convert between colour models

Cribbage Discard Pro NEW

Enter a cribbage hand and the computer will tell you what to discard

NHL Trades

An interactive visualization of all NHL trades and signings from Aug 1, 2005 to Oct 21, 2017

Battleship Probability Calculator

Cheat at battleship: find the optimal square to try next using the magic of statistics

Online Cribbage Board

A free online HTML5 cribbage board. Choose your board style and save your game for later!

Play Battleship

Try your luck against a computer opponent that uses probability to choose its moves!


Roll these 3D dice and watch them spin hypnotically

Motion Graphs

Generate position, velocity, and time graphs from given values

The Antisocial Network

A simulated social network: no real people, guaranteed success