Regex Pattern Generator
Generate precise regular expressions for any pattern — email addresses, URLs, phone numbers — with a plain-English explanation of every component in the regex.
The prompt
Write a regular expression that matches the following pattern. Show the regex, explain each part of it, and provide 5 example strings that match and 3 that don't:
{{pattern}}Works in ChatGPT, Claude, Gemini and other assistants. Replace the highlighted placeholders with your own content.
How to use it
Describe the pattern at {{pattern}} in plain English and add a few strings that should match and a few that should not. The prompt returns the regex with an explanation of each part.
Tips for better results
- Always give negative examples. They catch over-broad patterns.
- Name the regex flavor (JavaScript, PCRE, Python) because syntax differs.
- Test the result on real data before shipping it.
Save this prompt in Promta
Keep it in your library and paste it from the menu bar, a hotkey or your iPhone keyboard, without leaving the app you're in.
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Free to start · iPhone & Mac