AI Regex Pattern Generator

Regular expressions don't have to be cryptic. Describe what you want to match in plain English, provide a few examples, and let our AI generate the perfect regex pattern. Powered by Gemini for accurate, efficient patterns.

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Powered by Gemini AI

Natural language to regex conversion

Learn from positive and negative examples

AI explains the generated pattern

Multiple regex flavors - JavaScript, Python, PCRE

Pattern optimization for performance

Live testing against your sample data

How It Works

1

Describe what you want to match (e.g., "email addresses")

2

Optionally provide example matches and non-matches

3

Generate and get an explained regex pattern

4

Test and refine with the built-in regex tester

Frequently Asked Questions

How accurate is AI-generated regex?

Our AI generates patterns based on your description and examples. Providing more examples improves accuracy. We recommend testing generated patterns before production use.

Can I provide examples instead of descriptions?

Absolutely! Just paste strings that should match and shouldn't match, and the AI will infer the pattern. This often produces more precise results.

Does it explain the generated regex?

Yes! Every generated pattern comes with a human-readable explanation of what each part matches. Great for learning regex too.

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