Hexadecimal digits

[[:xdigit:]]

Matches hexadecimal digits. Equivalent to [0-9a-fA-F].

Examples

Match Sample:

hex123!

Regex Example:

[[:xdigit:]]+

PCRE

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Use this snippet to display this token on your own site.

<!-- Embed Regex Token: [[:xdigit:]] -->
<code class="regex-token">[[:xdigit:]]</code> - Hexadecimal digits
<small><a href="https://testregex.com/cheatsheet/hexadecimal-digits">See details</a></small>