Deskreen

Deskreen is a free and open source desktop app that turns any device with a web browser into a secondary screen for your computer over WiFi. Deskreen can be used to mirror entire computer display onto any device screen that has a web browser. Also you can limit Deskreen to select only one application window view to share - very useful for presentation purposes. The best feature of Deskreen is to use any device as a secondary screen! To have a true extended desktop experience Deskreen should be used with Virtual Display Adapter. Also without any need for Virtual Display Adapter you can have a teleprompter with Deskreen using your tablet or smartphone. For that Deskreen has Flip Screen Mode that mirrors screen (aka. flip screen horizontally).

"It all started with me wanting to use my iPad as a second screen for my Macbook. But I found that it is already outdated to use a MacOS built in feature called 'Sidecar' and I have to buy a new iPad. I also have a Windows PC and sometimes I needed to use my iPad as second screen for it as well. I tried to look for FREE solutions out there, but I could not find anything that would fit my requirements. Besides, all methods and software I found were different for Windows, Mac and Linux. I got very confused about it. Then I got an idea of creating Deskreen. I decided to make it free and open-source to help people to solve this problem. Deskreen works the same for Windows, MacOS and Linux.

- Pavlo (Paul) Buidenkov, Deskreen Creator and Maintainer