While there is no permanent "free" version of the official plugin by Vali Architects, you can access its features through a subscription or try free alternatives. Official Instant Fence and Railing Plugin
Downloading plugins from unofficial “free download” websites exposes users to significant risks: Instant Fence And Railing Plugin Download Free
If you are looking for a free solution for creating railings, consider these popular options: While there is no permanent "free" version of