Visible Barriers

Visible Barriers is a useful mod for mapmakers and map playtesters.

It adds multiple tools for mapmaking and testing, namely the ability to render barrier blocks as solid blocks using a keybind (default: b).

It also allows you to see marker entities (when installed on the server).

It also has several other features, such as a zoom keybind, fullbright, and the ability to set the time of day client side!