Regex Tester
Test a regular expression against sample text, generate matching examples, inspect matches, and review a lightweight pattern explanation.
Best For
Use Regex Tester when you need to inspect, convert, compare, or package technical material quickly. The page is designed around a focused workflow: bring in the code, data, markup, URL, or technical file, make the adjustment or check, then copy or download the result for your repo, ticket, documentation, or handoff.
Most work happens locally in your browser, which keeps files and text on your device and makes quick repeat checks practical. Review the output, then copy or download the result for your repo, ticket, documentation, or handoff.
Common workflows
- Email Validation Rules
- Phone Number Cleanup
- Order Number Extraction
- Form Response Checks
Features
Fast Pattern Testing
Try a pattern and immediately see whether it matches the text you expect.
Flags, Samples, and Match Details
Experiment with common regex flags, generated sample text, and practical match output.
Pattern Explanation
Review a lightweight token-by-token explanation for common regex constructs.
Useful for Real Work
Helpful for validation rules, text parsing, log cleanup, and data extraction tasks.
How It Works
Paste or type the regular expression you want to test.
Use real examples or generate a quick sample so the test reflects the data you are dealing with.
Review what matched, what did not, and refine the expression as needed.