RegEx Lab is an application that lets you test regular expressions. The utility supports the highlighting of regex syntax and matches. The tool provides a handy cheatsheet which tells you about the different operators, option flags and metacharacters. It comes with an extra row of keyboard keys for common special characters.
v1.1
• New feature - Previous / Next match - in the Editor you now have a 'Previous' and 'Next' match buttons which highlight the selected match.
Also in recent updates:
• You can sort the regular expressions list by name, date created or date last modified
