Regular Expression Tester
Easily test regular expressions with our online regex tester. Try global, multiline, dotall, unicode and other flags.
How It Works
- Enter Your Pattern: Type your Regular Expression inside the pattern field.
- Choose Regex Flags: Select any combination of flags like
g,i,m, etc., to modify the pattern behavior. - Input Test String: Enter the string you want to match against.
- Click "Test Regex": The tool runs the pattern and displays matched results.
- View & Copy Results: You can copy or export results using the provided buttons.
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Frequently Asked Questions
A regular expression is a sequence of characters that define a search pattern, often used for pattern matching with strings.
You input a regular expression pattern, select regex flags (g, i, m, s, u, y), and type a test string. The tool runs the regex and shows all matched results instantly.
Flags modify how the pattern is applied. For example, g is global, i is case-insensitive, m enables multiline matching, etc.
Yes, after running the regex, you can copy the results or export them using the provided buttons below the output section.
Absolutely. The tool is fully responsive and works on all modern devices.
Yes. Everything is processed locally in your browser. We never store your input or output.