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    Regex Tester

    Test regular expressions in real-time with syntax highlighting and match details.

    Tools
    Regex Tester

    Test regular expressions and see matches in real-time

    Valid Regex
    4 matches
    Contact us at: john.doe@example.com support@company.org invalid-email@ admin@test.co.uk not-an-email user123@domain.net
    1john.doe@example.comat position 15
    2support@company.orgat position 36
    3admin@test.co.ukat position 71
    4user123@domain.netat position 101

    Common Flags

    g = global, i = case insensitive, m = multiline, s = dotall