Regular Expression Tester
Test a JavaScript regular expression and flags against text locally.
Fast and secure data transformation directly in your browser.
Pattern
Test text
Regex result
Matches
Regex guide
- Enter a pattern and test text.
- Review matches and capture groups.
- Flags
- Options such as g, i, and m that change matching behavior.
- Capture groups
- Parenthesized parts whose matched values are captured separately.
Limitation: Only JavaScript regular expression syntax is supported.
Safety: Do not enter sensitive data.