Regex Explainer
Explain regular expressions in plain English. Understand what your regex does.
Try:
Enter a regex pattern above to see the explanation
How to Use Regex Explainer
- Paste your regular expression
- See each part explained in plain English
- Understand groups, quantifiers, and special characters
- Test against sample strings
About Regex Explainer
Enter any regular expression and get a plain English explanation of each component. Breaks down anchors, character classes, quantifiers, groups, and special sequences. Perfect for learning or debugging regex.
Frequently Asked Questions
What regex flavor is supported?
JavaScript regex syntax. Most common features work across languages, but some advanced features may differ.
Can I test my regex here?
This tool explains regex. For testing, use our Regex Tester tool which highlights matches.
What are capture groups vs non-capturing groups?
Capture groups (...) save matches for backreferences. Non-capturing groups (?:...) group without capturing.