RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp).
Results update in real-time as you type.
Roll over a match or expression for details.
Save & share expressions with others.
Use Tools to explore your results.
Browse the Library for help & examples.
Undo & Redo with Ctrl-Z / Y.
Search for & rate Community patterns.
Bookmarks - wr0ng.name
