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Learn regex from scratch with comprehensive tutorials, interactive examples, and powerful testing tools. Start your journey to becoming a regex expert today.
We combine powerful tools with in-depth education to help you master regular expressions.
From basic syntax to advanced lookarounds, our tutorials cover every aspect of regex with clear examples.
Test, debug, and visualize your patterns in real-time. Our tools are designed to provide immediate feedback.
Stop guessing. Copy-paste verified patterns for emails, URLs, dates, and more from our extensive library.
Explore our latest tutorials and guides on regular expressions
Explore the key differences between capturing and non-capturing groups in regex, understand when to use each, and optimize your patterns for better performance.
Comprehensive review and comparison of the best online regex testing tools available in 2025. Find the perfect regex tool for your needs.
Deep dive into C# regular expressions, master Regex class advanced usage and practical application cases.
Learn to extract and manipulate specific parts of matches using capture groups, backreferences, and named groups.
Master character classes to match sets of characters and create flexible regex patterns for any text processing task.
Learn how to validate date formats using regular expressions, including YYYY-MM-DD, MM/DD/YYYY, and international formats.
Learn how to validate credit card numbers using regular expressions, including Luhn algorithm and format-specific patterns.
Master regex debugging with proven techniques and step-by-step strategies for troubleshooting complex patterns.
Learn how to validate email addresses using regular expressions, including RFC 5322 standards and practical implementation tips.
Learn Go language's regexp package, master efficient regex usage techniques and best practices.
Master URL extraction from text using regular expressions with comprehensive patterns for HTTP, HTTPS, FTP, and more.
Master phone number validation using regular expressions with E.164 standard support for international formats and country codes.