Reginald is a kindly old gentleman devoted to assisting you with those tricky regular expressions.

Provide some sample input, and your regular expression, and Reginald will provide you with colour-coded output and a list of all your matches and the corresponding capture groups for your exploration. Select a match or capture group in the list to the right, and the corresponding text will be selected in the panel to the left.

A custom color picker designed specifically for developers. Makes getting colors out of Photoshop/Acorn mock-ups quick and easy. Currently supports NSColor, UIColor, CGColorRef, CSS and HTML styles.