The only one Regular Expression tester you need, that will help you to test your regular expressions in flavors:


Multi String Replacer is described as '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' and is an app. There are more than 50 alternatives to Multi String Replacer for a variety of platforms, including Windows, Web-based, Mac, Linux and Self-Hosted apps. The best Multi String Replacer alternative is regular expressions 101, which is free. Other great apps like Multi String Replacer are RegExr, dnGREP, Expresso and Find and Replace (FNR).
The only one Regular Expression tester you need, that will help you to test your regular expressions in flavors:


.NET regular expression tester with instantaneous highlighting, code completion, and C# and VB.NET code generation.



The Regulator is an advanced Regular expressions testing tool, featuring syntax highlighting and web-service integration with Regexlib.coms database of online regular expressions.

An online JavaScript regular expression tester. Enter a regex expression and test data and determine if matches are made.


regexxer is a nifty GUI search/replace tool featuring Perl-style regular expressions. If you need project-wide substitution and you’re tired of hacking sed command lines together, then you should definitely give it a try.

The Regex Coach is a graphical application for Windows which can be used to experiment with (Perl-compatible) regular expressions interactively. It has the following features:



Patterns is a simple yet powerful tool for working with regular expressions. Build great patterns quickly and effortlessly with syntax coloring and with matching and replacing occurring in real time.

Learn, develop and test Regular Expressions for the .NET platform. The .NET Regular Expression Designer is a free download for Windows that helps you learn, develop and test regular expressions.

RegViz is a tool for debugging JavaScript regular expressions in a visual way. Advanced highlighting helps you to understand the structure and purpose of a regular expression and to detect bugs therein.

What RegExpEditor is can be said easyest by telling what it is not: It is not an editor for regular expressions. Although it can be used for this purpose. Instead RegExpEditor is a text editor that allows you to alter text using regular expressions.
