Remotix - Remotix is a fast and powerful application to easily access multiple Macs (and PCs).
buffr.io - Have a synchronized text and file clipboard available under a unique link. Realtime web clipboard.
AnyDesk - AnyDesk is the world's most comfortable remote desktop application. Access all your programs, documents and files from anywhere, without having to entrust your data to a cloud service.
Permanent clipboard - How many times you wanted to keep important, but hard to remember, information at your mouse click...
cl1p.net - cl1p.net lets you move information between computers using your brain. For security the information in the url is destroyed as soon as it is read. Anyone visiting the same URL at a later time will not be able to see the message. cl1p by Rob Mayhew.
clipboard.ninja - Realtime clipboard to easily and secure share text between computers or mobile devices