Flash not supported in 2020 FIX

[Felix]

Tommy wrote: I prefer something more lightweight and just get the job done

One of the good things about GS that I really love, is that it allows you easy to use any PHP or JS library or framework.
Do you know how to use Google ?  Here are just two examples I found for you in less than a minute:

PHP
http://www.gerd-tentler.de/tools/filemanager/

JS
http://filedropjs.org/demo/

Here is another honorable mention with php code to inspire for making your own file upload plugin
http://jymden.com/php-simple-picturefile-upload-script/


There are hundreds more of them out there, bigger and smaller, for you to apply and customize to your own needs.