I used to use RegeBuddy which is a really good tool to develop and test regular expressions and I really miss it. But, since I am using an OS that is not supported by RegexBuddy I can’t use it any more. I have tried different online service and this week I found the online service at http://www.regexplanet.com which is not as good as RegexBuddy, but still decent. It gives you the ability to try for different languages and the specific features for each of them and to do match and replace testing. It does not have the colored syntax matching which I really liked with RegexBuddy.