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 is described as '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' and is a regular expression editor in the development category. There are more than 25 alternatives to RegEx Lab for a variety of platforms, including Windows, Web-based, Mac, Linux and Self-Hosted apps. The best RegEx Lab alternative is regular expressions 101, which is free. Other great apps like RegEx Lab 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.



Regex Generator is a tool to generate simple regular expressions. The goal is that people with less experience can create regex smoothly.

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.
