What does the tool return?
It returns a regex pattern, flags, short explanation, examples and notes.
AI tool
AI Regex Generator
Generate a regular expression from a plain-English matching requirement.
Common use cases
- Turn rough notes or model output into structured data.
- Review AI-generated JSON before using it.
- Create schemas, mock data and regex drafts faster.
Example input
Match lowercase slugs that can contain letters, numbers and hyphens, but cannot start or end with a hyphen.Related tools
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JSONFreeFAQ
Should I test the regex?
Yes. Open Regex Tester and verify the pattern against real examples.
Does this replace a security review?
No. Review generated regexes carefully before using them in validation or security-sensitive code.