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Tiny little tool to find URLs in a string of text and hyperlink them
JavaScript CoffeeScript HTML CSS
Branch: master


autolink-js is a small (about half a kilobyte), simple, and tested JavaScript tool that takes a string of text, finds URLs within it, and hyperlinks them.

Why bother releasing such a tiny little method?

I recently needed to find and hyperlink URLs in user-submitted text and was surprised to find that doing what seemed like such a simple task wasn't already a Solved Problem. Different regex solutions led to different unwanted side effects, and other utilities were far, far more complex and feature rich than I needed.

Basic Usage

autolink-js adds an autoLink() method to JavaScript's String prototype, so you can use it on any JavaScript string. Take a look at the tests, but essentially, after including either autolink.js or autolink-min.js to your page, it works like this:

// Input
"This is a link to Google".autoLink()

// Output
"This is a link to Google <a href=''></a>"

Additional Options

You can pass any additional HTML attributes to the anchor tag with a JavaScript object, like this:

// Input
"This is a link to Google".autoLink({ target: "_blank", rel: "nofollow", id: "1" })

// Output
"This is a link to Google <a href='' target='_blank' rel='nofollow' id='1'></a>"


Callback option can be used to redefine how links will be rendered.

// Input
"This is a link to image".autoLink({
  callback: function(url) {
    return /\.(gif|png|jpe?g)$/i.test(url) ? '<img src="' + url + '">' : null;

// Output
"This is a link to image <img src=''>"


Open example/example.html in your web browser and view the source for a simple but full-featured example of using with jQuery.

Running the tests

After cloning this repository, simply open test/suite.html in your web browser. The tests will run automatically.

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