An online JavaScript regular expression tester. Enter a regex expression and test data and determine if matches are made.
Cost / License
- Free
- Proprietary
Platforms
- Online
United States

Regex101 Chrome Extension is described as 'Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, Go, JavaScript, Java' and is an app. There are more than 25 alternatives to Regex101 Chrome Extension for a variety of platforms, including Web-based, Windows, Mac, Linux and Self-Hosted apps. The best Regex101 Chrome Extension alternative is RegExr, which is both free and Open Source. Other great apps like Regex101 Chrome Extension are regular expressions 101, Expresso, RegexMate and Wildcard.
An online JavaScript regular expression tester. Enter a regex expression and test data and determine if matches are made.


This script allows for the testing of regular expressions for both RegExMatch() and RegExReplace(). The results update in real time and any setting or expression errors are highlighted in red.

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.

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.




RegViz is a tool for debugging JavaScript regular expressions in a visual way. Advanced highlighting helps you to understand the structure and purpose of a regular expression and to detect bugs therein.

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.
