Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored.
KDE Connect is a project that aims to communicate all your devices. For example, with KDE Connect you can receive your phone notifications on your computer, or just use your phone as a remote control for your desktop.
RetroShare is a open source cross-platform, private and secure decentralized communication system. It lets you to securely chat, share photos, videos, and more, using OpenPGP to authenticate peers and .
OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network.
A cross-platform file sharing service which allows users to easily share digital content peer-to-peer, in real-time, without cloud storage.
Dukto is an easy file transfer tool designed for LAN use. Use it in everyday work to transfer files from one PC to another, without worrying about users, permissions, operating systems, protocols, clients, servers and so on… Just start dukto on the two PCs and transfer files and...Discontinued
The project is no longer maintained. Last version, released in 2013 can be still downloaded on the official website
Dukto R6 vs AirDrop opinions
WeTransfer is a service to send big or small files from A to B.
A network file-sharing application that makes sending a file to another machine on the local network as easy as dragging-and-dropping.Discontinued
Last update in June 2019 and last desktop release in October 2017. Android version has last release in February 2018.