Build & Test Regular Expressions
Create powerful regex patterns with visual builder, multi-language support, and real-time testing. Pattern library, bulk testing, and advanced analysis included.
Start Building NowAdvanced Regex Builder & Tester
Regular Expression Pattern
Test Your Regex
Why Use Our Regex Builder
How It Works
Frequently Asked Questions
Our tool combines visual pattern building with multi-language support, real-time testing, and comprehensive pattern library. It’s designed for both beginners learning regex and professionals needing advanced features.
We support 6 major programming languages: JavaScript, Python, PHP, Java, Go, and Rust. Each has language-specific flag support and syntax highlighting for accurate testing.
Yes! Our bulk testing feature allows you to upload text files or paste large datasets to test your regex patterns against multiple strings simultaneously with detailed results.
No, all regex building and testing happens entirely in your browser. Your patterns and test data are never sent to our servers or stored anywhere outside your local session.