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Welcome to RegExLib.com, the Internet's first Regular Expression Library. Currently we have indexed 3838 expressions from 2187 contributors around the world. We hope you'll find this site useful and come back whenever you need help writing an expression, you're looking for an expression for a particular task, or are ready to contribute new expressions you’ve just figured out. Thanks!

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Regex Resources

Regex Tester

Regex Tester

Regex Tester

Allows you to test while you write your Regular Expression

Shows all matches found in the PropertyGrid control so that you can drill down into the groups and captures

Shows the group name too, if you set one

 

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