Test, debug, and validate your regular expressions with our free online Regex Tester Tool. Quickly see if your regex matches your target text and identify any errors. This tool is invaluable for developers, data analysts, and anyone working with regular expressions.
A regular expression (regex or regexp) is a sequence of characters that define a search pattern. Regexes are used for pattern matching in strings.
Enter your regular expression in the "Regular Expression" field and the text you want to test it against in the "Test String" field. Click "Test Regex" to see the results.
The results will show whether the regex matched the text, and if so, what parts of the text were matched. Different JavaScript regex functions may return different results (e.g., `test()`, `match()`, `exec()`).