RegexMagic is recommended for programmers, data analysts, or anyone who needs to frequently work with text processing and pattern matching but prefers to avoid the complexity of writing raw regex code. It's especially useful for beginners looking to learn regex through a more visual approach.
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
rubular - A ruby based regular expression editor
Expresso - The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.
RegEx Generator - RegEx Generator is a simple-to-use application that comes with the brilliance of intuitive regex and is also helping you out to test the regex.
Reggy - Signup forms filled automatically with random identities
RegexBuddy - RegexBuddy is your perfect companion for working with regular expressions.