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

NeoRegex is described as 'A cross-platform app to valide regular expressions' and is an app. There are seven alternatives to NeoRegex for Web-based and Self-Hosted. The best NeoRegex alternative is regular expressions 101, which is free. Other great apps like NeoRegex are Regulex, Debuggex, Pyrexp and Pythex.
Regex101 is a powerful, online regular expression tool with extensive support for multiple languages including PHP, PCRE, Python and JavaScript.


Pyrexp is a regex testing tool that allows to validate regex patterns, test regular expressions against strings, and also includes a regex visualizer that provides graphical visualization of regex patterns.

Pythex is a real-time regular expression editor for Python, a quick way to test your regular expressions.

DevUtilHub provides 24+ free online developer tools including regex tester, Base64 encoder/decoder, JWT debugger, JSON formatter, hash generators, and more. All tools run entirely in your browser for maximum privacy and speed. No signup required.
