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Instant pattern matching with live results, highlighted matches, and detailed capture group information
Complete regex flag support including global, case-insensitive, multiline, and advanced options
Pre-built patterns for common use cases like emails, phone numbers, and color codes
Regular expressions are powerful for searching, replacing, and validating text. Our Regex Tester lets you write patterns, add flags, and instantly view matches with highlighted results—all running locally in your browser.
/g Case-insensitive /i Multiline /m and more.^(\w+[.-]?)*\w+@\w+([.-]?\w+)*(\.\w{2,3})+$Matches most standard email formats, e.g. john.doe@example.com.
#?([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})Captures 3- or 6-digit hex colors like #ff5733 or #123.
^(\(\d{3}\)|\d{3})[- ]?\d{3}[- ]?\d{4}$Accepts formats like (123) 456-7890 or 555-123-4567.
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