There are two, the original open source version and its forks, and then the closed source version.

Here are a bunch of local services I’ve used at one point or another from phone to PC or PC to PC. Not sure if any links are out of date.

KDE Connect

• Site: https://kdeconnect.kde.org/
• Source: https://github.com/KDE/kdeconnect-kde

Wormhole (Closed Source)

• Site: https://wormhole.app/

LocalSend

• Site: https://localsend.org/
• Source: https://github.com/localsend/localsend

SnapDrop

• Site: https://snapdrop.net/
• Source: https://github.com/RobinLinus/snapdrop

ShareDrop

• Site: https://www.sharedrop.io/
• Source: https://github.com/szimek/sharedrop

FilePizza

• Site: https://file.pizza/
• Source: https://github.com/kern/filepizza

Original Wormhole

• Site: https://webwormhole.io/
• Source: https://github.com/saljam/webwormhole

PeerTransfer

• Site: https://perguth.de/peertransfer/
• Source: https://github.com/perguth/peertransfer

JustBeamIt

• Site: https://justbeamit.com/
• Source: https://github.com/justbeamit/beam

Send Visee

• Website: https://send.vis.ee/
• Source: https://github.com/timvisee/send
• List of instances at: https://github.com/timvisee/send-instances