Regex Tester
Test and debug regular expressions in real-time. All processing happens in your browser.
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Regex Quick Reference
. Any character\d Digit [0-9]\w Word character\s Whitespace^ Start of line$ End of line* 0 or more+ 1 or more? 0 or 1{n,m} n to m times[abc] Character class(group) Capture groupFlags: g global, i case-insensitive, m multiline, s dotAll, u unicode