The Thingometer is a way of visualising electoral polling data by morphing the candidates into one another. It's for the 2015 UK elections, but feel free to fork it for others.
Explore the Mandelbrot Set with the HTML5 canvas element.
4tris is a version of Connect 4 with added havoc caused by lines vanishing and forming combos.
I've built an infinitely large version of Conway's Game Of Life which you can play with.
Explore Koch snowflake curves with the HTML5 canvas element.
Gravity is a game not unlike Worms or Angry Birds. Two players take turns hurling missiles at each other. The twist is that the missiles must travel through (or round) a solar system, where each planet exerts its own gravitational pull.
Check out my Android apps on the Google Play Store.