Veyon (Virtual Eye On Networks) is a free and open source software for monitoring and controlling computers across multiple platforms.

[4] Veyon is available in many different languages[5] and provides numerous features supporting teachers and administrators at their daily work.

[8] Veyon uses an extended version of the VNC protocol to communicate with remote computers and uses UltraVNC.

Since Veyon is based on TCP connections, broadcasting screens also works across local network boundaries.

[9] Fast and efficient compression algorithms even allow connecting private student computers at home.