Regex Generator — online
Generate regular expressions from plain English descriptions using AI.
How to use Regex Generator
Enter Your Plain English Description
Click the text input field labeled 'Describe your pattern' and type what you need the regex to match. For example, write 'match email addresses' or 'find phone numbers with area codes'. Be as specific as possible about the pattern requirements.
Click the Generate Button
Press the blue 'Generate Regex' button below the input field. The AI will process your description and generate a working regular expression within 2-3 seconds.
Copy Your Regex Pattern
The generated regex appears in the output box on the right side. Click the 'Copy' button next to the regex string to copy it to your clipboard instantly, or click 'Copy Test Cases' for sample matching examples.
Test Your Regex (Optional)
Enter sample text in the 'Test String' field below the output to verify the regex matches your expected patterns. Matched portions will highlight in green in real-time as you type.