Regex Tester

How to Use the Regex Tester

1. Enter your regular expression in the pattern field.
2. Toggle flags: g (all matches), i (ignore case), m (multiline), s (dot matches newline).
3. Paste sample text to test against.
4. Click Test Regex to see every match with its index.
5. Optionally enter a replacement string and click Replace.

Common Regex Examples

• Email: [\\w.+-]+@[\\w-]+\\.[\\w.]+
• Date (YYYY-MM-DD): \\b\\d{4}-\\d{2}-\\d{2}\\b
• URL: https?:\\/\\/[\\w.-]+(?:\\.[a-z]{2,})+
• Phone number: \\+?[0-9]{1,3}?[-.\\s]?\\(?[0-9]{3}\\)?[-.\\s]?[0-9]{3}[-.\\s]?[0-9]{4}