Regular Expression Library

Test Your Regular Expressions

New Silverlight Tester

Singleline

Case Insensitive

Multiline

Ignore Whitespace in Expression

Explicit Capture

URL

File

Source

Regular Expression
(GB-?)?([1-9][0-9]{2}\ ?[0-9]{4}\ ?[0-9]{2})|([1-9][0-9]{2}\ ?[0-9]{4}\ ?[0-9]{2}\ ?[0-9]{3})|((GD|HA)[0-9]{3})