.NET Regular Expression Designer Alternatives

Use RegexMagic to generate complete regular expressions to your specifications by using RegexMagics flexible patterns, instead of the cryptic regex syntax.

A free environment for regular expression testing (ferret). It allows you to write regexes and test them against a sample text, providing extensive output about the results.

rgxg is a command-line tool (and a C-library) that generates (extended) regular expressions.

regex visualization tool.

Search multiple strings occurrences simultaneously with the help of this piece of software that comes with support for regular expressions.

Multi String Replacer is a small and portable application that can be used to replace multiple strings at once. Its main functionality is String Swapping in which can be easily and quickly done. String swapping consists on replacing WordX with WordY and WordY with WordX.

Having trouble getting your regular expressions just right? Not sure what they match and what they leave out? Tired of having to write test programs every time? RegExhibit can help.

RegEx Lab allows you to test regular expressions. The app highlights and underlines text to show matches and capture groups. There's also a handy cheatsheet and a results list view. It has a replace feature too.

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, Go, JavaScript, Java.

Regexenator is a powerful yet simple regular expression tool for Android phones and tablets. You can use Regexenator to create, test, and evaluate regular expressions and search text for matches of your regular expressions.

Easily test your regular expressions against a sample body of text in a native UWP app designed for Windows 10. Just type your regex and it instantly begins matching as you type. Any capture groups are automatically highlighted, and the app works completely offline.

Regexp testing tool allows to apply group of regexps to huge arrays of data (millions or so) in order to investigate search or search/replacement possibilities of regexp group.