Regex Pattern Builder

Build and explain a regular expression for a specific pattern

🧪 Tested by a human Intermediate 👤 Developer 👤 Analyst 👤 It Admin
Build a regex pattern that matches [DESCRIBE WHAT YOU NEED — e.g. email addresses / phone numbers / dates in DD/MM/YYYY format / URLs]. Provide: (1) The regex pattern, (2) A plain English explanation of each part, (3) Test cases that should match, (4) Test cases that should NOT match, (5) Any edge cases to watch for. Language: [LANGUAGE].

Works on

⭐ ChatGPT (Best) 🟠 Claude

Copy & Open in

Prompt is copied to your clipboard when you click

Tips for Best Results

  • Test with real-world data not just simple examples
  • Consider international formats for phone numbers and dates
  • Use named capture groups for readability
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