Openupper is a free web service that will help you to open multiple website at same time. It is very simple and easy to use anybody. No sign up and download is required for using this service.
For creating links simply go to openupper website simply give name of your page and fill the title and desired URL in rows. If you want to add more URLs click â€œadd rowâ€ then new row will appear. Click on you page name all links will open.