Regex Generator & Tester
Generate, test, and validate regular expressions with ease. Create complex regex patterns and test them against sample text.
Pattern Generator
Common Regex Patterns
Email Address
/[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}/Phone Number
/(\+\d{1,3}[-.\s]?)?(\(?\d{3}\)?[-.\s]?)?\d{3}[-.\s]?\d{4}/URL
/(https?:\/\/)?(www\.)?[-a-zA-Z0-9@:%._+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_+.~#?&/=]*)/Date (YYYY-MM-DD)
/\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12]\d|3[01])/Strong Password
/^(?=.*[A-Z])(?=.*[a-z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$/Username
/^[a-zA-Z0-9_-]{3,16}$/IP Address (IPv4)
/\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b/US ZIP Code
/\b\d{5}(?:-\d{4})?\b/Hex Color Code
/#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/Time (24-hour)
/([01]?[0-9]|2[0-3]):[0-5][0-9]/Credit Card Number
/\b(?:\d[ -]*?){13,19}\b/Decimal Number
/-?\d+(\.\d+)?/How to Use Advance Regex Generator
Step-by-step guide to effectively utilize the Advance Regex Generator tool.
Describe What You Want to Match
Begin by explaining the type of text you want to detect — emails, numbers, dates, names, or any custom pattern. You can pick from ready-made presets or start with a blank pattern.
Build Your Regex Step by Step
Use the point-and-click interface to add character groups, symbols, and repeat rules. The tool writes the regex for you and keeps the syntax correct, so you don’t need to memorize regex rules.
Test Your Regex With Real Text
Paste or type sample text into the test box. The tool highlights all matches instantly. Try valid and invalid examples to be sure your regex catches the right things.
Copy or Export Your Final Regex
Once your pattern works, copy it in one click. You can also export the regex in formats used by JavaScript, Python, PHP, Java, and many other languages — already escaped correctly.
💡 Pro Tip
Use a representative sample that includes all possible fields.
Advanced Regex Generator Use Cases
Discover how developers across different domains use our Advanced Regex Generator tool.
Web Developers
- Check if email addresses and phone numbers in forms are correct
- Find and extract URLs or links from user-generated content
- Clean and validate user input to reduce security risks like XSS
- Pull out useful information from API responses and logs
- Create custom rules to validate different form fields
Data Analysts
- Extract specific patterns from large text datasets
- Clean and standardize data that has inconsistent formats
- Read and parse log files to find metrics or error patterns
- Check data quality by spotting wrong or unmatched formats
- Build automatic data transformation rules for ETL workflows
System Administrators
- Review server logs to detect security issues or unusual activity
- Pull IP addresses
- timestamps
- and error codes from log files
- Set up automated alerts based on log or system patterns
- Parse configuration files and system outputs for key details
- Make sure backup file names and script results follow the correct pattern
🚀 Why Use This Tool?
Save hours of manual work, reduce errors, and ensure consistency.
Frequently Asked Questions About Regex Generator
Get answers to common questions about our Regex Generator tool and how to use it effectively.