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