Delete all facebook group members on a given page. Usage: Copy this script, open developers console (F12) in chrome (win) and paste this script. The window will reload when it's finished

Delete all facebook members (all the one visible on a given page)

/**
 * This script will remove all group members displayed.
 *
 * @author: Nir Geier
 *
 * Usage:
 *    Load as many users as you need, then open console and paste this script in the
 *    console.
 *
 *    Once the script finished executing, the page will autoreload.
 *
 *    If looking the console doesn't give any feedback of what's happening, reload the
 *    page and repeat again. Take into account that it will delete one user per second,
 *    so it may take a while.
 */
var FBClearGroup = function() {

    // Get all the Admins settings buttons
    var memberSettings, removeLinks, timer;

    /**
     * This function will click on all the uses admin settings buttons to add the remove link to the page dom
     */
    function exposeRemoveLinks() {
        memberSettings = Array.prototype.slice.call(document.querySelectorAll('.adminActions [role="button"]'));

        // Expose all the remove users links except the first one, which is the admin
        console.debug('Getting all remove links...')

        var i = 0;
        memberSettings.forEach(function(item) {
            i = i + 1;
            if (i == 1) {
                return;
            }
            item.click();
        });

        // continue with the delete flow
        timer = setTimeout(openRemoveDialog, 1000);
    }

    /**
     * This function will display the remove dialog
     */
    function openRemoveDialog() {
        clearTimeout(timer);

        // Grab all the remove links
        removeLinks = Array.prototype.slice.call(document.querySelectorAll("a[href*='remove.php']"));
        removeLinks.forEach(function(item) {
            item.click();
        });

        // Remove the users
        timer = setTimeout(removeUsers, 1000);
    }

    /**
     * This method will click on the remove user and will remove the user form group
     */
    function removeUsers() {
        // Grab all the confirm buttons
        var confirmButton = Array.prototype.slice.call(document.querySelectorAll('.layerConfirm.uiOverlayButton[type="submit"]'));

        // Verify that the previous step has completed
        if (confirmButton.length + 1 < memberSettings.length) {
            timer = setTimeout(removeUsers, 1000);
        } else {
            // Click on the remove confirm button
            console.debug('Starting removing users')
            var i = 1;
            confirmButton.forEach(function(item) {
                setTimeout(function() {
                    item.click();
                    console.debug('Removed user');
                }, i * 1000);
                i = i + 1;
            });
            
            // Reload the page after everything is finished + 7 seconds
            setTimeout(function() {
                window.location.reload(false); 
            }, (i + 7) * 1000);
        }
    }

    exposeRemoveLinks();
}();

Actually it is deleting the admins. I looked the code and, as I understand, it should add all admins to exception list. But it is not happening

This script doesn't do user exceptions. It just ignores the first user in every page, that should be us. You can just add back the Admins when finished.

thanks man. it worked 👍 tried it on firefox not chrome

i'm deleting a group of 25k people, that's slowly but worth

Hi, having a problem. It only seems to delete a single user?

Hi man!
Thanks a lot for this one!!
I hade to change 2 selectors, maybe due to ui changes, after that worked like a charm. Forked it up here:
https://gist.github.com/kerenbe4/a4117b2d560bd54af466f0e4991b1526