LocalSend app
LocalSend is Connectivity tool that is open source under the MIT license. LocalSend is an open source app to share files and messages between nearby devices using the local wifi network.The communication between devices is entirely end-to-end encrypted via HTTPS.
No Internet required. No tracking*. No ads.
Currently, this app is available on Android, iOS, macOS, Windows and Linux. You can find all download options on the official homepage.
*The operating system may still gather usage data.