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

Patterns is described as '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' and is a regular expression editor in the development category. There are more than 25 alternatives to Patterns for a variety of platforms, including Windows, Web-based, Mac, Linux and Self-Hosted apps. The best Patterns alternative is regular expressions 101, which is free. Other great apps like Patterns are RegExr, Regex Forge, Expresso and RegexMate.
Regex101 is a powerful, online regular expression tool with extensive support for multiple languages including PHP, PCRE, Python and JavaScript.

Regex Forge is a regular expression editor for macOS with pattern visualization, syntax highlighting, live replace & preview and more.




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.


RegexMate offers seamless regex crafting and testing on macOS and iOS. Its minimalist interface provides an instant live preview, and users can save their expressions into a library for quick reference. A comprehensive guide with tutorials is always accessible, with light and dark mode options.






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



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.
