EasyGrep is an easy to use Windows grep software which allows you to search within files on your computer. Supports text based searches as well as regex searches. Supports Notepad++.

Regex Lab .NET is described as 'Full-featured application for editing regular expressions. The application features a modern, highly functional UI allowing increased productivity when writing or debugging regular expression patterns' and is an app. There are more than 25 alternatives to Regex Lab .NET for a variety of platforms, including Windows, Web-based, Mac, Linux and Self-Hosted apps. The best Regex Lab .NET alternative is regular expressions 101, which is free. Other great apps like Regex Lab .NET are RegExr, Expresso, RegexBuddy and PowerGREP.
EasyGrep is an easy to use Windows grep software which allows you to search within files on your computer. Supports text based searches as well as regex searches. Supports Notepad++.


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.

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.


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


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.


RegEx Lab is the most popular iPhone & iPad alternative to Regex Lab .NET.

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.



Regexenator is the most popular Android & Android Tablet alternative to Regex Lab .NET.
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.
