Linkify is jQuery plugin to formatting the text that contains URL or hashtag into a clickable HTML content.

It's small, it has no test suite but handles the large majority of cases, with exceptions (e.g. detecting modern TLDs like .museum properly, or punctuation at the end of the URL). For advanced options, check out the linkify or the urlize library.

Include the plugin script

<script src="jquery.linkify.js" type="text/javascript"></script>

$("#content").linkify();

or to enable the hashtag link

function toHashtagUrl(hashtag) {
  return "https://myservice.com?q=" + hashtag;
}

$("#content-with-hashtag").linkify(toHashtagUrl);

or if you want to disable the URL that does't include http

function toHashtagUrl(hashtag) {
  return "https://myservice.com?q=" + hashtag;
}

$("#content-with-hashtag").linkify({
	hashtagUrlBuilder: toHashtagUrl, 
	includeW3: false
});

or to specify the target for links

$("#content").linkify({
	target: "_blank"
});