: During installation or from the VNC Server status dialog, choose "Sign in to your RealVNC account" . Once you enter your credentials, the software is "licensed" for your free personal use. Truly Keyless Alternatives (Open Source)
When looking for a "free license key" for a VNC server, you generally have two paths: using the free-tier account of a commercial product like or opting for open-source versions that don't require keys at all. 1. RealVNC Connect "Lite" (The Modern "Free Key") vnc server free license key