I do not need to explain that “what is dropbox”. Home users use dropbox, companies use it, webmasters use it, everybody uses dropbox to store data online. Its a great online drive to store any kind of data, files, folders or archives. Data backup concept has shifted from local backup to online backup. PC hard drive is stable in most cases but for maximum security, users use online storage to store backup or any kind of data. Being online, data is available anywhere / anytime and it is in the cloud, so it is safe and will be accessible in every case. You can use dropbox to save your files and you can share those files as well. How do you allow other users to upload files to your dropbox account?