Regulex is a JavaScript regular expression visualizer with instant regex visualiation.
Best Regex Tester Alternatives ranked by AI · updated Aug 2026
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Regex Tester is an online tool for trying regular expressions against sample text. It targets developers who want a quick browser-based check across commonly used regex syntaxes.
Top 6 Regex Tester alternatives
Rubular is a Ruby-based regular expression editor and tester.
RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp).
Debuggex is a visual regex tester and debugger tool for creating, understanding, and testing regular expressions.
RegExhibit is a powerful tool for creating and testing regular expressions.
RegexPlanet is a free browser-based regular expression tester supporting Ruby and several other regex engines. It is aimed at developers who need...
Pros
- Supports Ruby-specific regular expression testing
- Provides separate testers for multiple programming languages
- Requires no installation or account
Cons
- Interface is less polished than regex101 or Rubular
- Debugging and explanation tools are relatively limited
- No collaborative workspace or project management features
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