Debuggex.com
Debuggex: Online visual regex tester. JavaScript, Python, and PCRE.
Visualize, test, and debug regular expressions for JavaScript, Python, and PCRE online with an interactive editor and instant feedback.
Visualize and test regex instantly online
Debuggex is an online tool that helps you create, test, and visualize regular expressions for languages like JavaScript, Python, and PCRE. With its interactive editor, you can see how your regex matches sample text in real time, making it easier to understand and fix complex patterns.
Whether you’re learning regex, troubleshooting an issue, or just want to experiment, Debuggex gives you instant feedback and clear visualizations. You can also add unit tests, share your regex with others, and access helpful tutorials. It’s a handy resource for developers, students, and anyone working with regular expressions.
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