Visualizing regular expressions

Oh, regular expressions... I don't know you, but I always want to use it, and I always spent a while trying to accomplish what I want.

http://www.regexper.com/

I think that this is a great tool. You can visualize exactly what you're grouping.

Happy regex!

Pattern:

^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$