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💡 Popular Patterns

Emails:

Phone Numbers:

URLs:

Numbers:

About

Create and test regular expressions with our interactive generator. Choose from predefined patterns or create custom regex with real-time testing and instant results.

Why Choose Our Regex Generator?

⚡ Instant Results

See your pattern matches in real-time as you type

🎯 Prebuilt Patterns

Choose from a library of common regex patterns

🔍 Detailed Analysis

Get insights into how your regex pattern works

🛡️ Privacy & Security

All processing happens in your browser - your data never leaves your device

Common Use Cases

📧 Email Validation

Validate email addresses with RFC-compliant patterns

📱 Phone Formatting

Extract and format phone numbers from text

🔗 URL Extraction

Find and extract URLs from any text

📅 Date Parsing

Match common date formats

🔐 Password Validation

Enforce password strength requirements

🎨 Color Code Extraction

Extract hex color codes from CSS and HTML

Quick Reference Guide

Basic Patterns

.. - Any character except newline
\d\d - Any digit (0-9)
\w\w - Word character (a-z, A-Z, 0-9, _)
\s\s - Whitespace character

Quantifiers

** - Zero or more
++ - One or more
?? - Zero or one
{n}{n} - Exactly n times

Language-Specific Implementations

💡 Pro Tip: Pattern Compatibility

The same regex pattern may behave differently across programming languages. Always test in your target environment.

Learn Regex Basics

Getting Started

New to regex? Start with simple patterns and build up complexity gradually.

Best Practices

  • Keep patterns simple and readable
  • Use comments to document complex patterns
  • Test with edge cases
  • Avoid catastrophic backtracking
  • Use non-capturing groups when you don't need the match

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