Warpinator is described as 'Free, open-source tool for sending and receiving files between computers that are on the same network. All you need do is install Warpinator on the computers, choose a group code, edit your firewalls if necessary, and that’s all' and is a large file transfer service in the file sharing category. There are more than 50 alternatives to Warpinator for a variety of platforms, including Windows, Web-based, Mac, Android and Linux apps. The best Warpinator alternative is LocalSend, which is both free and Open Source. Other great apps like Warpinator are Syncthing, KDE Connect, Blip and OnionShare.