Top Websites for pattern matching

regex101.com

Build, test, and debug regular expressions with syntax highl...

regexone.com

Interactive lessons and exercises to learn regular expressio...

lotsofwords.com

Find words matching patterns and criteria for word games.

rubular.com

Ruby-based regular expression editor/tester

curiousmindsbusybags.com

Educational toys and learning games for toddlers and prescho...

pcre.org

Perl Compatible Regular Expressions library.

regexbuddy.com

Software for learning, creating, testing, and using regular ...

regexper.com

Regular expression visualizer using railroad diagrams

txt2regex.com

Generate regular expressions from user input.

phraseinfo.com

Find words based on patterns.