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

Expresso is described as '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' and is a regular expression editor in the development category. There are more than 25 alternatives to Expresso for a variety of platforms, including Web-based, Windows, Mac, Linux and Self-Hosted apps. The best Expresso alternative is regular expressions 101, which is free. Other great apps like Expresso are RegExr, RegexBuddy, RegexMate and Wildcard.
An online JavaScript regular expression tester. Enter a regex expression and test data and determine if matches are made.

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