AI Regex Generator
Server-poweredGenerate regular expressions from plain English descriptions using AI
Tip: Be specific. For example, "Match US phone numbers with optional country code and dashes or dots as separators."
How It Works
Describe Your Pattern
Write a plain English description of what text pattern you want to match. Be as specific as possible about formats, separators, and edge cases.
AI Generates Regex
Our AI analyzes your description and crafts an optimized regular expression. It also provides appropriate flags, a step-by-step explanation, and test examples.
Test and Copy
Test the generated regex against your own text with real-time match highlighting. Copy the pattern, the full regex literal, or a JavaScript constructor.
Example Use Cases
Email Validation
"Match valid email addresses"
/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/URL Extraction
"Find all URLs starting with http or https"
/https?:\/\/[\w\-._~:/?#\[\]@!$&'()*+,;=%]+/gDate Parsing
"Match dates in YYYY-MM-DD format"
/\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12]\d|3[01])/gPassword Strength
"Match passwords with at least 8 chars, 1 uppercase, 1 lowercase, 1 digit"
/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[A-Za-z\d@$!%*?&]{8,}$/About AI Regex Generator
Regular expressions (regex) are powerful tools for pattern matching and text manipulation, but their cryptic syntax can be difficult to write and understand. Our AI Regex Generator bridges this gap by letting you describe patterns in plain English and receiving a working regex instantly.
Whether you are validating user input, extracting data from logs, parsing structured text, or building search functionality, this tool generates accurate regular expressions without requiring you to memorize complex regex syntax.
Each generated regex comes with a detailed explanation breaking down every part of the pattern, along with test examples so you can verify correctness before integrating it into your code. Use the built-in test section to validate the regex against your own sample data.