This javascript removes all users from a facebook group. It works with the new facebook layout. Paste this in the javascript console. Script tested in Firefox. Known issues: 1. when facebook responds slowly, the script might experience hickups.. 2. occasionially, the error 'this user is not a member of the group' pops up.. IMPORTANT: add your ow…

facebook-mass-delete-group-members.js

var deleteAllGroupMembers = (function () {
    var deleteAllGroupMembers = {};
    // the facebook ids of the users that will not be removed.
    // IMPORTANT: add your own facebook id here so that the script will not remove yourself!
    var excludedFbIds = ['1234','11223344']; // make sure each id is a string!
    var usersToDeleteQueue = [];
    var scriptEnabled = false;
    var processing = false;
 
    deleteAllGroupMembers.start = function() {
        scriptEnabled = true;
        deleteAll();
    };
    deleteAllGroupMembers.stop = function() {
        scriptEnabled = false;
    };
 
    function deleteAll() {
        if (scriptEnabled) {
            queueMembersToDelete();
            processQueue();
        }
    }
 
    function queueMembersToDelete() {
        var adminActions = document.getElementsByClassName('adminActions');
        console.log(excludedFbIds);
        for(var i=0; i<adminActions.length; i++) {
            var gearWheelIconDiv = adminActions[i];
            var hyperlinksInAdminDialog = gearWheelIconDiv.getElementsByTagName('a');
            var fbMemberId = gearWheelIconDiv.parentNode.parentNode.id.replace('member_','');
            var fbMemberName = getTextFromElement(gearWheelIconDiv.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.getElementsByClassName('fcb')[0]);
 
            if (excludedFbIds.indexOf(fbMemberId) != -1) {
                console.log("SKIPPING "+fbMemberName+' ('+fbMemberId+')');
                continue;
            } else {
                usersToDeleteQueue.push({'memberId': fbMemberId, 'gearWheelIconDiv': gearWheelIconDiv});
            }
        }
    }
 
    function processQueue() {
        if (!scriptEnabled) {
            return;
        }
        if (usersToDeleteQueue.length > 0) {
            removeNext();
 
            setTimeout(function(){
                processQueue();
            },1000);
        } else {
            getMore();
        }
    }
 
    function removeNext() {
        if (!scriptEnabled) {
            return;
        }
        if (usersToDeleteQueue.length > 0) {
            var nextElement = usersToDeleteQueue.pop();
            removeMember(nextElement.memberId, nextElement.gearWheelIconDiv);
        }
    }
 
    function removeMember(memberId, gearWheelIconDiv) {
        if (processing) {
            return;
        }
        var gearWheelHref = gearWheelIconDiv.getElementsByTagName('a')[0];
        gearWheelHref.click();
        processing = true;
        setTimeout(function(){
            var popupRef = gearWheelHref.id;
            var popupDiv = getElementByAttribute('data-ownerid',popupRef);
            var popupLinks = popupDiv.getElementsByTagName('a');
            for(var j=0; j<popupLinks.length; j++) {
                if (popupLinks[j].getAttribute('href').indexOf('remove.php') !== -1) {
                    // this is the remove link
                    popupLinks[j].click();
                    setTimeout(function(){
                        var confirmButton = document.getElementsByClassName('layerConfirm uiOverlayButton selected')[0];
                        var errorDialog = getElementByAttribute('data-reactid','.4.0');
                        if (confirmButton != null) {
                            if (canClick(confirmButton)) {
                                confirmButton.click();
                            } else {
                                console.log('This should not happen memberid: '+memberId);
                                5/0;
                                console.log(gearWheelIconDiv);
                            }
                        }
                        if (errorDialog != null) {
                            console.log("Error while removing member "+memberId);
                            errorDialog.getElementsByClassName('selected  layerCancel autofocus')[0].click();
                        } 
                        processing = false;
                    },700);
                    continue;
                }
            }
        },500);
    }
 
    function canClick(el) {
        return (typeof el != 'undefined') && (typeof el.click != 'undefined');
    }
 
    function getMore() {
        processing = true;
        more = document.getElementsByClassName("pam uiBoxLightblue  uiMorePagerPrimary");
        if (typeof more != 'undefined' && canClick(more[0])) {
            more[0].click();
            setTimeout(function(){
                deleteAll();
                processing = false;
           }, 2000);
        } else {
            deleteAllGroupMembers.stop();
        }
    }
 
    function getTextFromElement(element) {
        var text = element.textContent;
        return text;
    }
 
    function getElementByAttribute(attr, value, root) {
        root = root || document.body;
        if(root.hasAttribute(attr) && root.getAttribute(attr) == value) {
            return root;
        }
        var children = root.children,
            element;
        for(var i = children.length; i--; ) {
            element = getElementByAttribute(attr, value, children[i]);
            if(element) {
                return element;
            }
        }
        return null;
    }
    return deleteAllGroupMembers;
})();
deleteAllGroupMembers.start();
 
// stop the script by entering this in the console: deleteAllGroupMembers.stop();

Having a problem with the excluded FBID's . Even when I enter the string with the ID's, it still deleted them. Can't seem to get this to work without that bug. (Can someone give me advice, I have 8 admins I want to keep)

Thanks, this version is working perfectly with the new facebook layout.

Thanks, worked like a charm :)

Works beautifully, thanks!

the script stop code is returning an error of "undefined." Any help?

I have even cleared the console but yet it runs

Could this be modified to remove blocks from groups?

@carloslopez1990 looks like that gist isn't available any more. Would it be possible to share it again?

Hi AaronRM,

Is it anyway to modify this script to unblock all members from the block lists?

Thanks

This works buddy, thanks
1/7/2017

Having issues with this where it will only remove half of the member list. It goes down the left or right hand column only.

Thanks :-) This script save me hours of work.

I have hundreds of IDs to exclude, but the
var excludedFbIds = ['1234','11223344']
portion has a limit on the string.
Please suggest a modification.
thank you

still works flawlessly, many thanks...

Extremely useful. I removed a group of 6.500 users with the script.
Only, i have had to restart chrome several times as it was collapsed.
To search the facebook ID i used that link: Search my facebook ID

Is there a way to modify this script to delete hidden members that do not show up on the member list? I've got only a few I need to delete, and can put their id in, but don't want to enter 100k+ ids to exclude.

It does not work for me?
Why?
Any other suggestions?
Thanks

Updated a new solution, tested on chrome: https://gist.github.com/kencarino/3be7c5ee0bec39da99a05639c0fc2673