Regular expression builder

I was doing some input verification of data to method when it did hit me that it would be nice if I could do it with regular expression since I was only check if the string data was in correct format. Since I’m not an expert in regular expression I needed some type of builder or verification tool. After some searching I found this free tool RegExr that has both an online version and desktop version. The thing that I did like most was the online version that was only a click away. The program doesn’t help you that much building the regular express but it helps a lot for verifying your expressions. It also has a bunch “code snippets” that you can use as building block.
Anyway this little program did save my day to tryout some different expression to find one that did fit my needs.

So I hope that you also will find it useful.
RegExr desktop