Regex101 is a powerful, online regular expression tool with extensive support for multiple languages including PHP, PCRE, Python and JavaScript.
Cost / License
- Free
- Proprietary
Platforms
- Online

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.
Regex101 is a powerful, online regular expression tool with extensive support for multiple languages including PHP, PCRE, Python and JavaScript.

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 or web designer with an extensive knowledge of regular expressions.


RegexBuddy is your perfect companion for working with regular expressions. Learning, creating, understanding, testing, using and saving regular expressions has never been easier.



PowerGREP is a powerful Windows grep tool. Quickly search through large numbers of files on your PC or network, including text and binary files, compressed archives, MS Word documents, Excel spreadsheets, PDF files, OpenOffice files, etc.


.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.

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.


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:


