Regex Tester
Test regular expressions with real-time matching.
Regex Tester is a real-time regular expression testing tool. Enter a pattern and test string to instantly see all matches, captured groups, and match positions with highlighted results.
Features
- Real-time pattern matching
- Flag support (g, i, m, s)
- Match highlighting with colors
- Captured group display
- Match count and positions
Usage Example
// Pattern: (\d{3})-(\d{4})
// Test: Call 123-4567 or 987-6543
// Matches: 123-4567, 987-6543
// Groups: [123, 4567], [987, 6543]FAQ
What is regex?
Regular expressions (regex) are patterns used to match character combinations in strings. They are used in search, validation, and text manipulation.
What do the flags mean?
g = global (find all matches), i = case-insensitive, m = multiline (^ and $ match line boundaries), s = dotAll (. matches newlines).
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