Regular Expression Tester
Test and debug regular expressions
About
This regular expression tester allows you to test your regex patterns against sample text and see matches in real-time. It provides syntax highlighting, match details, and explanations of your regex. Perfect for learning regex, debugging patterns, and validating text formats. ### How to Use 1. Enter or paste your data in the input field. 2. Adjust any available settings or options. 3. Click the action button to process. 4. Copy or download the result.
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How to Use
This regular expression tester allows you to test your regex patterns against sample text and see matches in real-time. It supports common regex flags and provides syntax highlighting for matches.
Regular Expression Pattern
Flags
Test Text
Matches Highlighted
Match Details
No matches found
Common Regex Patterns
Examples
Input
Regex: ^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$, Text: [email protected]Output
Match found: [email protected]
Email validation regex
FAQ
What regex flavor is supported?
The tool supports JavaScript regex syntax, which is widely used in web development.
Can I test global and case-insensitive flags?
Yes, you can enable global (g), case-insensitive (i), multiline (m), and other flags.
Is this tool free?
Yes, this tool is completely free to use.
Is my data secure?
Yes, all processing is done in your browser. Your data is not sent to any server.
Does it work offline?
Yes, once the page is loaded, you can use the tool offline.