Welcome to RXBuild

Simply edit your regular expression on the right, the input text at the top, and view the match results at the bottom.


If this tool is not living up to your expectations, feel free to contribute, or visit these fine alternatives:


Links to some popular reg exp flavour references:


See the source for a full description.
Code is licenced under the L-GPL.
Software developped by Eric Doughty-Papassideris, loosly based on work by Jan Max Meyer.