Regex Gen

Generate regex patterns from plain English descriptions. Because nobody actually remembers regex syntax.

Quick Start

npx ai-regex "match email addresses"

What It Does

• Converts plain English to working regex
• Explains what each part of the pattern does
• Provides test cases for validation
• Supports common patterns out of the box
• Works for any programming language

Usage

# Generate regex from description
npx ai-regex "match phone numbers with optional country code"

# Get regex for URLs
npx ai-regex "validate URLs including localhost"

# Match dates
npx ai-regex "match dates in YYYY-MM-DD format"

Example Output

Pattern: ^[\w.-]+@[\w.-]+\.\w{2,}$
Explanation:
  ^ - Start of string
  [\w.-]+ - One or more word chars, dots, or hyphens
  @ - Literal @ symbol
  ...
Test cases: ✓ [email protected] ✓ [email protected]

Part of the LXGIC Dev Toolkit

One of 110+ free developer tools from LXGIC Studios. No paywalls, no sign-ups.

Find more:

• GitHub: https://github.com/lxgic-studios
• Twitter: https://x.com/lxgicstudios
• Substack: https://lxgicstudios.substack.com
• Website: https://lxgicstudios.com

License

MIT. Free forever.