Regular Expression Tester for EcmaScript (JavaScript)

regexp:

options for search and replace: Case Insensitive Multiline, ^ and $ match at the start or end of any line.

subject string: The search within This String using the EcmaScript regexp object

replacement text
(also use $1 .. $9 for capture groups):

option for replace only: Global, match all instances not just the first.

result: click the replace button to see the result