Developer utilities

RegExr alternatives

Explore another environment for testing and debugging regular expressions.

These tools from the Appydev directory offer different approaches to similar needs. Use the comparisons below to find a fit for your workflow.

1 alternative · Catalog reviewed October 23, 2026

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Regex 101

Alternative to RegExr Explaining and testing regex

Online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript

Developer Tools

Online regex tester, debugger with highlighting for PHP, PCRE, Python, Golang and JavaScript.

Test regular expressions with explanations and support for multiple regex engines.

Select the same regex flavor and flags as your production environment.

Recommendations are based on the use cases described above. Check each product's current plans and documentation for the features you need.