Software

Haskell

• gasbag produces ctags and etags from Haskell code.

PHP

• Generate a simple PDF calendar.
• dir_tree_walk is a PHP function for recursively processing directory trees.
• A pure-PHP implementation of the Mersenne Twister.
• A convenient way to use large numbers, with arbitrary precision, in PHP.
• Currying in PHP.

JavaScript

• A rapid, visual way to select colours for a website.

Toys

I wrote these when teaching myself jQuery. They're probably not worth your time unless I've actually asked you to look at them.

• Change words stealthily.
• Update a bar chart in real time.