Have you ever said, "I can see the PC on the network but I can't access it"?
On Same Network Cross Platform
LocalSend (my new favorite) winget install -e --id LocalSend.LocalSend
ShareDrop works well. It's a web platform. Not sure of limitations.
Send seems to work also.
*These have gone off the rails so just set up ssh, ftp or web server and get on with life.
Servers
Clients
Not On Same Network
Large Files and Auto Delete
... Wormhole (10gb self delete encrypted)
Small Files and Auto Delete (pain on Android phone)
... Sendanywhere
Large Files
... pCloud (May be best right now)
Large Files and Manual Delete
... Mega
Onionshare (Slow and may choke on large files but I like the concept.)
Receiving end needs to use Tor for the onion share address.
. . . Or Better yet SSH (Look Here)