Regex Create precise regular expressions from natural language

Regex プロンプト *

ヒント： Describe what you want to match in plain English. Include examples of valid and invalid inputs for more accurate patterns.

無料 AI Regex Generator

Generate accurate regular expressions from plain English descriptions. Supports multiple regex flavors including JavaScript, Python, PCRE, Java, .NET, and more with explanations and test cases.

Perfect For

Developers who need to validate input formats, data engineers extracting patterns from text, programmers working with different regex engines, anyone who struggles with regex syntax, and teams needing documented patterns with explanations.

Key Features

Support for multiple regex flavors (JavaScript, Python, PCRE, Java, .NET, POSIX, Go, Rust). Pattern-only or full code snippet output. Detailed explanations of pattern components. Example test cases showing matches. Interactive pattern tester. Copy-to-clipboard for easy use.