Check the WCAG 3 contrast between two colours and convert between colour models
Enter a cribbage hand and the computer will tell you what to discard
A free online HTML5 cribbage board. Choose your board style and save your game for later!
Roll these 3D dice and watch them spin hypnotically
Try your luck against a computer opponent that uses probability to choose its moves!
An interactive visualization of all NHL trades and signings from Aug 1, 2005 to Oct 21, 2017
A simulated social network: no real people, guaranteed success
Cheat at battleship: find the optimal square to try next using the magic of statistics
Generate position, velocity, and time graphs from given values