The Bad:

Warning: this is an unofficial, non-Twitter approved way to easily gett a list of your Twitter followers.

The Good:

This is a really easy, can’t hurt anything method. Using just Google Chrome Developer Tools (part of the browser). But hey, if Twitter sends you a nasty letter, please don’t blame me.

The Scenario:

As of today, Twitter only shows about 18 of your followers at once. As you scroll down on your page, it loads another 18, so on and so on. If you have thousands of followers, getting to your first followers is kind of a pain, and would take forever. The below few chunks of javascript basically scroll the page to the end, and allow you to see the entire list.

Step 1. Open dev tools by hitting F12.

Step 2. Click the Console tab (maybe between Elements and Sources).

Step 3. Visit your followers page (ie: twitter.com/username/followers).

Step 4. Paste the below code into the Console (next to the “>”):

for (i = 0; i < 5000; i++) {

    setTimeout(function() {

        if ($(".has-more-items")[0]) {
        
            window.scrollTo(0, document.body.scrollHeight);

        } else {
           
           //console.dir('Finished.');
        }

    }, i * 1000);

}

Step 5. When it finished at and the bottom of your page, run the below to get a list of your followers copied to the clipboard:

var r = '';
$( ".ProfileCard-screenname .u-linkComplex-target" ).each(function( index ) {
r = r + $(this).text() +  "\n";
});

console.dir(r);
copy(r);

Bonus:
Do the above Step 4 on your “following” page, and then run the below to show people you’re following, but don’t follow you:

$( ".u-size1of2:has(.FollowStatus)" ).hide();