The Regex Tester by WittyTools lets you test and validate regular expressions with live matching results. Instantly see how your regex patterns behave against sample text, making debugging and learning regex faster and easier.
Whether you’re a developer, student, or data analyst, this tool helps you experiment with different regex patterns, flags, and inputs—all directly in your browser with real-time feedback.
Is this Regex Tester free? Yes, it is completely free.
Is my data sent to a server? No, all testing runs locally in your browser.
Who is this tool for? Developers, learners, and anyone working with regex.