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Regex Batch Tester

Test your regular expression against multiple strings at once. See matches, capture groups, and highlighted results for each string.

Regex Batch Tester
Test Strings (one per line)
More options
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How to use Regex Batch Tester

  1. Enter your regular expression.
  2. Add test strings (one per line or comma-separated).
  3. View match results for each string.
  4. See highlighted matches and captured groups.

What is Regex Batch Tester?

A regex batch tester lets you test a regular expression against multiple input strings simultaneously. It shows which strings match, highlights matched portions, and displays captured groups.

This tool is invaluable for testing regex patterns against a set of example strings to ensure they match correctly. It helps identify false positives and false negatives in your patterns.

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FAQ

How many strings can I test?
There's no hard limit, but performance is best with under 1000 strings at a time.
Can I see capture groups?
Yes — the tool displays all capture groups for each matching string.

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Author

MW
Marcus Webb"The DevTool Craftsman"

Full-Stack Developer & Tools Architect

Marcus has been writing code since the dial-up era. He has contributed to open-source developer tools, built CI/CD pipelines for startups, and debugged production incidents at 3 AM more times than he would like to admit. His philosophy is that the best developer tool is the one that gets out of your way, and he writes about practical tooling that helps teams ship faster with fewer headaches.

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