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Are those just examples, or are they the complete set of values you want to match?
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Are those just examples, or are they the complete set of values you want to match?

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Try this, assuming delimiters of / and pattern modifier flags of g and m:<br />

<pre><code id="code-20-42383794-1">/(https?:\/\/)?((www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@%_\+.~#?&amp;\/=]*)|(\d{1,3}\.){3}\d{1,3}):\d+/gm</code></pre>
<br />
Let me know if there's a particular language or tool you're using it with.<br />
<br />
Demo: <a href="https://regex101.com/r/fzDxc8/1" rel="ugc">https://regex101.com/r/fzDxc8/1</a>
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Try this, assuming delimiters of / and pattern modifier flags of g and m:


/(https?:\/\/)?((www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@%_\+.~#?&\/=]*)|(\d{1,3}\.){3}\d{1,3}):\d+/gm


Let me know if there's a particular language or tool you're using it with.

Demo: https://regex101.com/r/fzDxc8/1 [https://regex101.com/r/fzDxc8/1]

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My regular expression for a valid URL with Port number is not working. &nbsp;I need it to match:<br />
<br />
<a href="http://www.test1.com:8080" rel="ugc">www.test1.com:8080</a><br />
<a href="https://www.test2.com:80" rel="ugc">https://www.test2.com:80</a><br />
121.1.10.1:8080<br />
<br />
thanks
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My regular expression for a valid URL with Port number is not working.  I need it to match:

www.test1.com:8080
https://www.test2.com:80
121.1.10.1:8080

thanks

Regular Expression for URL and Port

A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.