RegExr.com is an online tool to learn, build, and test Regular Expressions. It was created by Grant Skinner and the nice people at gskinner.com.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Online

Regexper is described as 'Regex visualization tool' and is an website. There are more than 10 alternatives to Regexper, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and iPhone apps. The best Regexper alternative is RegExr, which is both free and Open Source. Other great sites and apps similar to Regexper are RegexMate, Wildcard, RegexBuddy and Regex Generator.
RegExr.com is an online tool to learn, build, and test Regular Expressions. It was created by Grant Skinner and the nice people at gskinner.com.

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:


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


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.

Txt2Regex is a programmer's tool for finding regular expression. Simply copy and paste the text and get your code in PHP, Perl, C++, C#, Python, Ruby, Pascal, etc.

iHateRegex offers an easy way for developers to find helpful and reusable regular expressions while also providing an intuitive playground to interact with regex snippets to create or just learn.


Create, edit, and test RegEx Regular Expressions. Replace, format, and extract text in files using Regular Expressions. Perform GREP-like tasks, use RegEx substitutions, extract data! Supports color syntax highlighting and contextual tooltips making it easy to design patterns.



