Dropwire is described as 'Free, open-source, peer-to-peer file transfer — send any file straight between devices, end-to-end encrypted, resumable, with no account and no server holding your data. Built on iroh. Desktop apps for Windows, macOS & Linux' and is a large file transfer service in the file sharing category. There are more than 50 alternatives to Dropwire for a variety of platforms, including Windows, Android, Mac, Linux and Web-based apps. The best Dropwire alternative is LocalSend, which is both free and Open Source. Other great apps like Dropwire are OnionShare, Send, PairDrop and RetroShare.